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Medical Dictionary - Dictionary of Medicine and Human Biology

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


oculofacial (ok-u-lo-fa′shal)
Relating to the eyes and the face.

oculography (ok-u-log′ra-fe)
A method of recording eye position and movements. [oculo- + G. graphe, a writing] photosensor o. o. in which photocells are directed to the surface of the eye to record rotations.

oculogyria (ok′u-lo-ji′re-a)
The limits of rotation of the eyeballs. [oculo- + G. gyros, circle]

oculogyric (ok′u-lo-ji′rik)
Referring to rotation of the eyeballs; characterized by oculogyria.

oculomandibulodyscephaly (ok′u-lo-man-dib′u-lo-dis-sef′a-le)
SYN: dyscephalia mandibulo-oculofacialis.

oculomotor (ok′u-lo-mo′tor)
Pertaining to the o. cranial nerve. [L. oculomotorius, fr. oculo- + L. motorius, moving]

oculomotorius (ok′u-lo-mo-to′re-us)
SYN: oculomotor nerve [CN III]. [L.]

oculonasal (ok′u-lo-na′sal)
Relating to the eyes and the nose. [oculo- + L. nasus, nose]

oculopathy (ok-u-lop′a-the)
SYN: ophthalmopathy.

oculoplethysmography (ok′u-lo-pleth-iz-mog′ra-fe)
Indirect measurement of the hemodynamic significance of internal carotid artery stenosis or occlusion by demonstration of an ipsilateral delay in the arrival of ocular pressure transmitted from branches of the ophthalmic artery. [oculo- + G. plethymos, increase, + graphe, to write]

oculopneumoplethysmography (ok′u-lo-noo′mo-pleth-iz-mog′ra-fe)
A method of bilateral measurement of ophthalmic artery pressure that reflects pressure and flow in the internal carotid artery. See oculoplethysmography.

oculopupillary (ok′u-lo-poo′pi-lar-e)
Pertaining to the pupil of the eye.

oculosympathetic (ok′oo-lo-sim-pa-the′tik)
Pertaining to the sympathetic pathway to the eye, damage to which produces Horner syndrome.

oculovertebral (ok′u-lo-ver′te-bral)
Relating to the eyes and vertebrae.

oculozygomatic (ok′u-lo-zi-go-mat′ik)
Relating to the orbit or its margin and the zygomatic bone.

oculus, gen. and pl. oculi (ok′u-lus, -li) [TA]
SYN: eye (1) . [L.]

ocy-
See oxy-.

ocytocin (o-si-to′sin)
SYN: oxytocin. [G. okytokos, fast birth, prompt delivery]

OD
Abbreviation for overdose; optic density (see absorbance).

O.D.
1. Abbreviation for L. oculus dexter, right eye. 2. Abbreviation for Doctor of Optometry. See optometrist.

o.d.
Abbreviation for L. omni die, every day.

odaxesmus (o′dak-sez′mus)
A biting sensation; a form of paresthesia. [G. odaxesmos, an irritation, fr. odax (adv.), by biting.]

odaxetic (o′dak-set′ik)
1. Causing formication or itching. 2. A substance or agent that causes formication or itching. [G. odaxesmos, an irritation]

Oddi
Ruggero, Italian physician; 1864–1913. See O. sphincter.

odds
The ratio of probability of occurrence to non-occurrence of an event. [pl. of odd, fr. M.E. odde, fr. O.Norse oddi, odd number]

-odes
Having the form of, resembling. [G. eidos, form, resemblance]

Odland body
See under body.

odogenesis (o-do-jen′e-sis)
SYN: neurocladism. [G. hodos, path, + genesis, source]

odont-, odonto-
A tooth, teeth. [G. odous (odont-)]

odontagra (o-don-tag′ra)
Obsolescent term for toothache thought to be of gouty origin. [odonto- + G. agra, seizure]

odontalgia (o-don-tal′je-a)
SYN: toothache. [odont- + G. algos, pain] o. dentalis reflex pain in the ear due to dental disease, usually propagated along the auriculotemporal nerve.

odontalgic (o-don-tal′jik)
Relating to or marked by toothache.

odontectomy (o-don-tek′to-me)
Removal of teeth by the reflection of a mucoperiosteal flap and excision of bone from around the root or roots before the application of force to effect the tooth removal. [odont- + G. ektome, excision]

odonterism (o-don′ter-izm)
Chattering of the teeth. [odont- + G. erismos, quarrel]

odontiasis (o-don-ti′a-sis)
SYN: teething.

odontinoid (o-don′ti-noyd)
1. Resembling dentin. 2. A small excrescence from a tooth, most common on the root or neck. 3. Toothlike.

odontitis (o-don-ti′tis)
SYN: pulpitis.

odonto-
See odont-.

odontoameloblastoma (o-don′to-am′e-lo-blas-to′ma)
SYN: ameloblastic odontoma.

odontoblast (o-don′to-blast)
One of the dentin-forming cells, derived from mesenchyme of neural crest origin, lining the pulp cavity of a tooth; odontoblasts are arranged in a peripheral layer in the dental pulp, each with an odontoblastic process extending through the thickness of the dentine; the cells generally are columnar in the coronal pulp but are more cuboidal in the radicular area and adjacent to tertiary dentin. [odonto- + G. blastos, sprout, germ]

odontoblastoma (o-don′to-blas-to′ma)
1. A tumor composed of neoplastic epithelial and mesenchymal cells that may differentiate into cells able to produce calcified tooth substances. 2. An odontoma in its early formative stage. [odontoblast + G. -oma, tumor]

odontoclast (o-don′to-klast)
One of the cells believed to produce resorption of the roots of the deciduous teeth. [odonto- + G. klastos, broken]

odontodynia (o-don-to-din′e-a)
SYN: toothache. [odonto- + G. odyne, pain]

odontodysplasia (o-don′to-dis-pla′ze-a)
A developmental disturbance of one or of several adjacent teeth, of unknown etiology, characterized by deficient formation of enamel and dentin, which results in an abnormally large pulp chamber and imparts a ghostlike radiographic image to the teeth; such teeth exhibit delayed eruption into the oral cavity. SYN: odontogenesis imperfecta, odontogenic dysplasia.

odontogenesis (o-don-to-jen′e-sis)
The process of development of the teeth. SYN: odontogeny, odontosis. [odonto- + G. genesis, production] o. imperfecta SYN: odontodysplasia.

odontogeny (o-don-toj′e-ne)
SYN: odontogenesis.

odontoid (o-don′toyd)
1. Shaped like a tooth. SYN: dentoid. 2. Relating to the toothlike o. process of the second cervical vertebra. [odont- + G. eidos, resemblance]

odontology (o-don-tol′o-je)
SYN: dentistry. [odonto- + G. logos, study] forensic o. SYN: forensic dentistry.

odontoloxia, odontoloxy (o-don-to-lok′se-a, o-don-tol′ok-se)
SYN: odontoparallaxis. [odonto- + G. loxos, slanting]

odontolysis (o-don-tol′i-sis)
SYN: erosion (3) . [odonto- + G. lysis, dissolution]

odontoma (o-don-to′ma)
1. A tumor of odontogenic origin. 2. A hamartomatous odontogenic tumor composed of enamel, dentin, cementum, and pulp tissue that may or may not be arranged in the form of a tooth. [odonto- + G. -oma, tumor] ameloblastic o. a benign mixed odontogenic tumor composed of an undifferentiated component histologically identical to an ameloblastoma and a well-differentiated component identical to an o.; appears as a mixed radiolucent-radiopaque lesion and presents clinically as an ameloblastoma. SYN: odontoameloblastoma. complex o. an o. in which the various odontogenic tissues are organized in a haphazard arrangement with no resemblance to teeth. compound o. an o. in which the odontogenic tissues are organized and resemble anomalous teeth.

odontoneuralgia (o-don′to-noo-ral′je-a)
Facial neuralgia caused by a carious tooth.

odontonomy (o-don-ton′o-me)
Dental nomenclature. [odonto- + G. onoma, name]

odontonosology (o-don′to-no-sol′o-je)
SYN: dentistry. [odonto- + G. nosos, disease, + logos, study]

odontoparallaxis (o-don′to-par-a-lak′sis)
Irregularity of the teeth. SYN: odontoloxia, odontoloxy. [odonto- + G. parallax, alternately]

odontopathy (o-don-top′a-the)
Any disease of the teeth or of their sockets. [odonto- + G. pathos, suffering]

odontophobia (o-don-to-fo′be-a)
Morbid fear of teeth. [odonto- + G. phobos, fear]

odontoplasty (o-don′to-plas-te)
Surgical contouring of tooth surface to enhance plaque control and gingival morphology. [odonto- + G. plasso, to mold]

odontoprisis (o-don-top′ri-sis)
Grinding together of the teeth. SEE ALSO: bruxism. [odonto- + G. prisis, a sawing, a grinding]

odontoptosis (o-don-top-to′sis, -to-to′sis)
Downward movement of an upper tooth due to the loss of its lower antagonist(s). SEE ALSO: supereruption. [odonto- + G. ptosis, a falling]

odontorrhagia (o-don-to-ra′je-a)
Profuse bleeding from the socket after the extraction of a tooth. [odonto- + G. rhegnymi, to burst forth]

odontoschism (o-don′to-skizm, -sizm)
Fissure of a tooth. [odonto- + G. schisma, a cleft]

odontoscope (o-don′to-skop)
An optical device, similar to a closed circuit television system, that projects a view of the oral cavity onto a screen for multiple viewing.

odontoscopy (o-don-tos′ko-pe)
1. Examination of the oral cavity by means of the odontoscope. 2. Examination of the markings in prints of the cutting edges of the teeth; used, like fingerprints, as a method of personal identification. [odonto- + G. skopeo, to view]

odontosis (o-don-to′sis)
SYN: odontogenesis.

odontotherapy (o-don-to-thar′a-pe)
Treatment of diseases of the teeth.

odontotomy (o-don-tot′o-me)
Cutting into the crown of a tooth. [odonto- + G. tome, incision] prophylactic o. a preventive operation in which imperfectly formed developmental grooves, pits, and fissures are opened up by means of a bur and filled to obviate future decay.

odor (o′dor)
Emanation from any substance that stimulates the olfactory sensory cells. SYN: scent, smell (3) . [L.]

odorant (o′dor-ant)
A substance with an odor.

odoratism (o-dor′a-tizm)
See lathyrism. [fr. Lathyrus odoratus, sweet pea]

odoriferous (o-do-rif′er-us)
Having a scent, perfume, or odor. SYN: odorous. [odor + L. fero, to bear]

odorimeter (o′do-rim′e-ter)
Instrument for performing odorimetry.




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