| mid | 1. Denoting the middle part; as, in mid ocean. "No more the mounting larks, while Daphne sings, Shall list'ning in mid air suspend their wings." (Pope) 2. Occupying a middle position; middle; as, the mid finger; the mid hour of night. 3. Made with a somewhat elevated position of some certain part of the tongue, in relation to the palate; midway between the high and the low; said of certain vowel sounds; as, a (ale), e (ell), o (old). <prefix> Mid is much used as a prefix, or combining form, denoting the middle or middle part of a thing; as, mid-air, mid-channel, mid-age, midday, midland, etc. Also, specifically, in geometry, to denote a circle inscribed in a triangle (a midcircle), or relation to such a circle; as, mid-center, midradius. Origin: AS. Midd; akin to OS. Middi, D. Mid (in comp), OHG. Mitti, Icel. Mir, Goth. Midjis, L. Medius, Gr, Skr. Madhya. Cf. Amid, Middle, Midst, Mean, Mediate, Meridian, Mizzen, Moiety. Source: Websters Dictionary (01 Mar 1998) |
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| mid-atlantic region | A geographical area of the united states comprising the district of columbia, delaware, maryland, new jersey, new york, and pennsylvania. (12 Dec 1998) |
| mid seral species | Shade intolerant species, primarily Douglas-fir trees and vine maple shrubs. These species typically follow the early seral species in natural succession. (05 Dec 1998) |
| mid seral treatment | A treatment in which a stand of predominately mid seral species will be established. (05 Dec 1998) |
| accessory organs of the eye | The eyelids, with lashes and eyebrows, lacrimal apparatus, conjunctival sac, and extrinsic muscles of the eyeball. Synonym: organa oculi accessoria, accessory organs, accessory visual apparatus, adnexa oculi, appendages of eye. (05 Mar 2000) |
| accommodation of eye | The increase in thickness and convexity of the eye's lens in order to focus the image of an external object upon the retina. (05 Mar 2000) |
| amaurotic cat's eye | A yellow reflex from the pupil in cases of retinoblastoma or pseudoglioma. (05 Mar 2000) |
| anterior chamber of eye | The space between the cornea anteriorly and the iris/pupil posteriorly, filled with a watery fluid (aqueous humor) and communicating through the pupil with the posterior chamber. Synonym: camera anterior bulbi, camera oculi anterior, camera oculi major. (05 Mar 2000) |
| anterior eye segment | That part of the eyeball anterior to the lens. (12 Dec 1998) |
| antibiotic eye drops | <pharmacology> A medication that is pH balanced to allow placement into the eye for the purpose of killing bacteria. Examples include: Bleph-10, Chloromycetin, Cortisporin-Ophthalmic, Gantrisin, Genoptic, Gentacidin, Garamycin, Gantrisin, Ilotycin, Sodium Sulamyd and Sulphair. (27 Sep 1997) |
| aphakic eye | The eye from which the lens is absent. (05 Mar 2000) |
| appendages of eye | The eyelids, with lashes and eyebrows, lacrimal apparatus, conjunctival sac, and extrinsic muscles of the eyeball. Synonym: organa oculi accessoria, accessory organs, accessory visual apparatus, adnexa oculi, appendages of eye. (05 Mar 2000) |
| artificial eye | A curved disk of opaque glass or plastic, containing an imitation iris and pupil in the centre, inserted beneath the eyelids and supported by the orbital contents after evisceration or enucleation; it may be ready-made (stock) or custom-made. (05 Mar 2000) |
| bird's-eye | <botany> A plant with a small bright flower, as the Adonis or pheasant's eye, the mealy primrose (Primula farinosa), and species of Veronica, Geranium, etc. Source: Websters Dictionary (01 Mar 1998) |
| black eye | Ecchymosis of the lids and their surroundings. (05 Mar 2000) |