| octylene | <chemistry> Any one of a series of metameric hydrocarbons (C8H16) of the ethylene series. In general they are combustible, colourless liquids. Origin: Octane + ethylene. Source: Websters Dictionary (01 Mar 1998) |
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| octylic | <chemistry> Pertaining to, derived from, or containing, octyl; as, octylic ether. Source: Websters Dictionary (01 Mar 1998) |
| octylphenoxy polyethoxyethanol | Mono-p-isooctyl phenyl ether of polyethylene glycol; a surface-active (wetting) agent. (05 Mar 2000) |
| ocular | 1. Of, pertaining to or affecting the eye. 2. Eyepiece. Origin: L. Ocularis, from oculus = eye (18 Nov 1997) |
| ocular albinism | The absence of pigment chiefly in the iris, choroid, and retinal pigment epithelium with deafness; X-linked inheritance. (05 Mar 2000) |
| ocular bobbing | Sudden conjugate downward deviation of the eyes with a slow return to the normal position; seen in some comatose patients who have bilateral hemisphere lesions. (05 Mar 2000) |
| ocular cone | The cone of light in the interior of the eyeball with the base formed by the rays entering through the pupil and the apex focused on the retina. (05 Mar 2000) |
| ocular crisis | Sudden and severe pain in the eyes. (05 Mar 2000) |
| ocular cup | The double-walled cup formed by the invagination of the embryonic optic vesicle; its inner component becomes the sensory layer of the retina, its outer layer, the pigment layer. Synonym: caliculus ophthalmicus, ocular cup. (05 Mar 2000) |
| ocular dysmetria | Abnormality of ocular movements in which the eyes overshoot on attempting to fixate an object. (05 Mar 2000) |
| ocular flutter | A spontaneous, brief, intermittent, horizontal oscillation of the eyes occurring during fixation; it often coexists with ocular dysmetria in cerebellar syndromes. (05 Mar 2000) |
| ocular humor | One of the two humor's of the eye: aqueous and vitreous. (05 Mar 2000) |
| ocular hypertelorism | <clinical sign, ophthalmology> Extreme width between the eyes, mental retardation may be associated. (13 Nov 1997) |
| ocular hypertension | A condition in which the intraocular pressure is elevated above normal and which may lead to glaucoma. (12 Dec 1998) |
| ocular hypotension | Abnormally low intraocular pressure often related to chronic inflammation (uveitis). (12 Dec 1998) |