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Medical Dictionary


icteric (ik-ter′ik)
Relating to or marked by jaundice. [G. ikterikos, jaundiced]

Icterus. [G. ikteros, jaundice]

icteroanemia (ik′ter-o-a-ne′me-a)
SYN: acquired hemolytic icterus.

icterogenic (ik′ter-o-jen′ik)
Causing jaundice. [ictero- + G. -gen, producing]

icterohematuric (ik′ter-o-he′ma-too′rik)
Denoting jaundice with the passage of blood in the urine. [ictero- + G. haima, blood, + ouron, urine]

icterohemoglobinuria (ik′ter-o-he′mo-glo-bi-noo′re-a)
Jaundice with hemoglobin in the urine.

icteroid (ik′ter-oyd)
Yellow-hued, or seemingly jaundiced. [ictero- + G. eidos, resemblance]

icterus (ik′ter-us)
SYN: jaundice. [G. ikteros] acquired hemolytic i. i. and anemia occuring in association with a moderate degree of splenomegaly, increased fragility of red blood cells, and increased amounts of urobilin in the urine. SYN: icteroanemia. benign familial i. SYN: familial nonhemolytic jaundice. cholestatic hepatosis i. gravidarum SYN: intrahepatic cholestasis of pregnancy. chronic familial i. SYN: hereditary spherocytosis. congenital hemolytic i. SYN: hereditary spherocytosis. cythemolytic i. i. caused by absorption of bile produced in excess through stimulation by free hemoglobin caused by the destruction of red blood corpuscles. i. gravis jaundice associated with high fever and delirium; seen in severe hepatitis and other diseases of the liver with severe functional failure. SYN: malignant jaundice. infectious i. SYN: Weil disease. i. melas a form in which the skin assumes a dirty dark brown color. i. neonatorum SYN: physiologic i.. SYN: physiologic jaundice. physiologic i. SYN: i. neonatorum. i. praecox a relatively innocent but rapidly developing type of jaundice with mild anemia in the newborn, most frequently caused by ABO incompatibility between mother and fetus.

ictometer (ik-tom′e-ter)
An apparatus for determining the force of the apex beat of the heart. [L. ictus, stroke, + G. metron, measure]

ictus (ik′tus)
1. A stroke or attack. 2. A beat. [L.] i. cordis SYN: heart beat. i. epilepticus an epileptic convulsion. i. paralyticus a paralytic stroke. i. solis SYN: sunstroke.

Abbreviation for intensive care unit.

Abbreviation for infecting dose. See minimal infecting dose.

1. In psychoanalysis, one of three components of the psychic apparatus in the freudian structural framework, the other two being the ego and superego. It is completely in the unconscious realm, is unorganized, is the reservoir of psychic energy or libido, and is under the influence of the primary processes. 2. The total of all psychic energy available from the innate biologic hungers, appetites, bodily needs, drives and impulses, in a newborn infant; through socialization this diffuse undirected energy becomes channeled in less egocentric and more socially responsive directions (development of the ego from the i.). [L. i., that]

1. A state of sensitivity of the skin in which a part remote from the primary lesion reacts (“-id reaction”) to substances of the pathogen, giving rise to a secondary inflammatory lesion; the lesion manifesting the reaction is designated by the use of -id as a suffix. [G. -eides, resembling, through Fr. -ide] 2. Small, young specimen. [G. -idion, a diminutive ending]

Abbreviation for iminodiacetate, whose derivatives are used in radiopharmaceuticals with a 99mTc label. See HIDA. SEE ALSO: DISIDA.

Abbreviation for insulin-dependent diabetes mellitus.

1. Suffix denoting the more electronegative element in a binary chemical compound; formerly denoted by the qualification -ureted; e.g., hydrogen sulfide was sulfureted hydrogen. 2. Suffix (in a sugar name) indicating substitution for the H of the hemiacetal OH; e.g., glycoside.

idea (i-de′a)
Any mental image or concept. [G. form, appearance, fr. idein, to have seen, fr. obs. eido, to see] autochthonous ideas thoughts that suddenly burst into awareness as if they are vitally important, often as if they have come from an outside source. compulsive i. a fixed and repetitively recurring i.. dominant i. an i. that governs all one's actions and thoughts. fixed i. 1. an exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind; 2. the obstinate conviction of a psychotic person regarding the correctness of a delusion. SYN: idée fixe, overvalued i.. flight of ideas an uncontrollable symptom of the manic phase of a bipolar depressive disorder in which streams of unrelated words and ideas occur to the patient at a rate that is impossible to vocalize despite a marked increase in the individual's overall output of words. SEE ALSO: mania. overvalued i. SYN: fixed i.. i. of reference the misinterpretation that other people's statements or acts or neutral objects in the environment are directed toward one's self when, in fact, they are not.

ideal (i-del′)
A standard of perfection. ego i. the part of the personality that comprises the goals, aspirations, and aims of the self, usually growing out of the emulation of a significant person with whom one has identified.

ideation (i-de-a′shun)
The formation of ideas or thoughts.

ideational (i-de-a′shun-al)
Relating to ideation.

idée fixe (e-da′feks′)
SYN: fixed idea. [Fr. obsession]

identification (i-den′ti-fi-ka′shun)
1. Act or process of determining classification or nature of. 2. A sense of oneness, or psychic continuity with another person or group; one of the freudian defense mechanisms common to everyone whereby anxiety regarding one's personal identity or worth is dissipated via the mechanism of perceiving oneself as having characteristics in common with a person in the public eye, or in childhood identifying with a more powerful person such as a parent. SYN: incorporation. [Mediev. L. identicus, fr. L. idem, the same, + facio, to make] projective i. a defensive attribution of one's own psychic processes to another person. synthetic sentence i. a test of central auditory pathway integrity in which a closed set of 10 syntactically incomplete sentences are presented with a competing message for i..

identity (i-den′ti-te)
A person's social role person and his or her perception of it. ego i. the ego's sense of its own i.. gender i. the consistency and persistence of one's individuality as male, female, or androgynous. Particularly as experienced in self-awareness; the internalized representation of gender role. Cf.:gender role, sex role. sense of i. one's sense of one's own i. or psychological selfhood.

Ideas; ideation Cf.:idio-. [G. idea, form, notion]

ideokinetic (i′de-o-ki-net′ik)
SYN: ideomotor.

ideology (i-de-ol′o-je, id-e-)
The composite system of ideas, beliefs, and attitudes that constitutes an individual's or group's organized view of others. [ideo- + G. logos, study]

ideomotion (i-de-o-mo′shun)
Muscular movement executed under the influence of a dominant idea, being practically automatic and not volitional.

ideomotor (i′de-o-mo′ter)
Relating to ideomotion. SYN: ideokinetic.

ideophobia (i′de-o-fo′be-a)
Morbid fear of new or different ideas.

Private, distinctive, peculiar to. Cf.:ideo-. [G. idios, one's own]

idioagglutinin (id′e-o-a-gloo′tin-in)
An agglutinin that occurs naturally in the blood of a person or an animal, without the injection of a stimulating antigen or the passive transfer of antibody.

idiodynamic (id′e-o-di-nam′ik)
Independently active.

idiogenesis (id′e-o-jen′e-sis)
Origin without evident cause; denoting especially that of an idiopathic disease. [idio- + G. genesis, production]

idioglossia (id′e-o-glos′e-a)
An extreme form of lalling or vowel or consonant substitution, by which the speech of a child may be made unintelligible and appear to be another language to one who does not have the key to the literal changes. [idio- + G. glossa, tongue, speech]

idioglottic (id′e-o-glot′ik)
Relating to idioglossia.

idiogram (id′e-o-gram)
1. SYN: karyotype. 2. Diagrammatic representation of chromosome morphology characteristic of a species or population. [idio- + G. gramma, something written]

idiographic (id′e-o-graf′ik)
Pertaining to the characteristics or behavior of a particular individual as an individual, as opposed to nomothetic. [idio- + G. grapho, to write]

idioheteroagglutinin (id′e-o-het′er-o-a-gloo′tin-in)
An idioagglutinin occurring in the blood of one animal, but capable of combining with the antigenic material from another species. [idio- + G. heteros, another, + agglutinin]

idioheterolysin (id′e-o-het-er-ol′i-sin)
An idiolysin occurring in the blood of an animal of one species, but capable of combining with the red blood cells of another species, thereby causing hemolysis when complement is present.

idiohypnotism (id′e-o-hip′no-tizm)
SYN: autohypnosis.

idioisoagglutinin (id′e-o-i′so-a-gloo′tin-in)
An idioagglutinin occurring in the blood of an animal of a certain species, capable of agglutinating the cells from animals of the same species. [idio- + G. isos, equal, + agglutinin]

idioisolysin (id′e-o-i-sol′i-sin)
An idiolysin occurring in the blood of an animal of a certain species, capable of combining with the red blood cells from animals of the same species, thereby causing hemolysis when complement is present.

idiolalia (id′e-o-la′le-a)
Use of a language invented by the person himself. [idio- + G. lalia, talk]

idiolysin (id-e-ol′i-sin)
A lysin that occurs naturally in the blood of a person or an animal, without the injection of a stimulating antigen or the passive transfer of antibody.

idiomuscular (id′e-o-mus′ku-lar)
Relating to the muscles alone, independent of the nervous control.

idionodal (id′e-o-no′dal)
Arising from the AV node itself; applied to the ventricular rhythm in complete S-A or AV block, or in other forms of AV dissociation, when the AV node rather than an ectopic ventricular focus controls the ventricles. More accurately idiojunctional, since it is usually impossible to more accurately locate an “AV nodal” rhythm; the AV node is part of the AV junction. SEE ALSO: idioventricular.

idiopathetic (id′e-o-pa-thet′ik)
Rarely used term for idiopathic.

idiopathic (id′e-o-path′ik)
Denoting a disease of unknown cause. SYN: agnogenic. [idio- + G. pathos, suffering]

idiopathy (id-e-op′a-the)
An idiopathic disease. [idio- + G. pathos, suffering]

idiophrenic (id′e-o-fren′ik)
Relating to, or originating in, the mind or brain alone, not reflex or secondary. [idio- + G. phren, mind]

idiopsychologic (id′e-o-si-ko-loj′ik)
Relating to ideas developed within one's own mind, independent of suggestion from without.

idioreflex (id-e-o-re′fleks)
A reflex due to a stimulus or irritation originating in the organ or part in which the reflex occurs.

idiosome (id′e-o-som)
The centrosome of a spermatid or of an oocyte. [idio- + G. soma, body]

idiosyncrasy (id′e-o-sin′kra-se)
1. An individual mental, behavioral, or physical characteristic or peculiarity. 2. In pharmacology, an abnormal reaction to a drug, sometimes specified as genetically determined. [G. idiosynkrasia, fr. idios, one's own, + synkrasis, a mixing together]

idiosyncratic (id′e-o-sin-krat′ik)
Relating to or marked by an idiosyncrasy.

idiotope (id′e-otop)
Single antigenic determinant of an idiotype. SEE ALSO: idiotypic antigenic determinant. SYN: idiotypic antigenic determinant. [idio- + -tope] set of idiotopes (antigenic determinants) of either the immunoglobulin or T cell receptor variable regions.

idiot-prodigy (id′e-ot prod′i-je)
SYN: idiot-savant.

idiotrophic (id′e-o-trof′ik)
Capable of choosing its own food. [idio- + G. trophe, food]

idiotropic (id′e-o-trop′ik)
Turning inward upon one's self. [idio- + G. trope, a turning]

idiot-savant (e-de-o′ sah-vahn′)
A person of low general intelligence who possesses an unusual faculty for certain mental tasks of which most normal persons are incapable. SYN: idiot-prodigy. [Fr.]

idiotype (id′e-o-tip)
Collection of idiotopes within the variable region that confers on an immunoglobulin molecule an antigenic “individuality” and is frequently a unique attribute of a given antibody in a given animal. It is the product of a limited number of B lymphocyte clones; also found on the T-cell receptor. See idiotope. [idio- + G. typos, model]

idioventricular (id-e-o-ven-trik′u-lar)
Pertaining to or associated with the cardiac ventricles alone.

iditol (i′di-tol)
Reduction product of the hexose idose.

Abbreviation for intermediate density lipoprotein.

idose (i′dos)
One of the aldohexoses, isomeric with galactose; l-i. is epimeric with d-glucose. See sugar.

idoxuridine (IDU) (i-doks-u′ri-den)
A pyrimidine analogue that produces both antiviral and anticancer effects by interference with DNA synthesis; used locally in the eye for the treatment of keratitis from herpes simplex or vaccinia.

Abbreviation for inosine 5′-diphosphate.

Abbreviation for idoxuridine.

iduronate (i-door-on′at)
The salt or ester of iduronic acid. i. sulfatase an enzyme required for the desulfation of 2-sulfate i. residues in heparan sulfate. It is also required in dermatan sulfate degradation; Hunter syndrome is associated with a deficiency of this enzyme.

iduronic acid (i-door-on′ik)
The uronic acid of idose; a constituent of dermatan sulfate.

Abbreviation for isoelectric point.

Abbreviation for initiation factor; intrinsic factor.

Abbreviation for interferon.

Abbreviation for interferon alpha.

Abbreviation for interferon beta.

Abbreviation for interferon gamma.

Abbreviation for immunoglobulin.

Abbreviation for immunoglobulin A.

Abbreviation for immunoglobulin D.

Abbreviation for immunoglobulin E.

Abbreviation for insulinlike growth factor.

Abbreviation for immunoglobulin G.

Abbreviation for immunoglobulin M.

ignatia (ig-na′she-a)
The dried ripe seed of Strychnos ignatii (family Loganiaceae). It is similar in its properties to nux vomica and is a source of strychnine. [St. Ignatius]


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