| freeman | Origin: AS. Freoman; freofree + mann man. 1. One who enjoys liberty, or who is not subject to the will of another; one not a slave or vassal. 2. A member of a corporation, company, or city, possessing certain privileges; a member of a borough, town, or State, who has the right to vote at elections. See Liveryman. "Both having been made freemen on the same day." (Addison) Source: Websters Dictionary (01 Mar 1998) |
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| Freeman, E | <person> See: Freeman-Sheldon syndrome. (05 Mar 2000) |
| Freeman-Sheldon syndrome | Congenital association of skeletal defects (ulnar deviation of hands with camptodactyly, talipes equinovarus, and frontal bone defects) and characteristic facies (protrusion of lips as in whistling, sunken eyes with hypertelorism, and small nose); autosomal dominant inheritance. Synonym: craniocarpotarsal dysplasia, Freeman-Sheldon syndrome, whistling face syndrome. (05 Mar 2000) |
| Collier's tucked lid sign | <clinical sign> Unilateral or bilateral lid retraction due to midbrain lesion; occurring at any age. See: setting sun sign, Epstein's sign. Synonym: Collier's tucked lid sign. (05 Mar 2000) |
| nose-bridge-lid reflex | Contraction of the orbicularis oculi muscles upon tapping the margin of the orbit, or the bridge or tip of the nose. Synonym: nose-bridge-lid reflex, nose-eye reflex. (05 Mar 2000) |
| upper lid | The superior, larger and more mobile of the two eyelids which covers most of the anterior surface of the eyeball, including the cornea, when closed; a portion of the lacrimal gland and the aponeurosis of the levator palpebrae superioris muscle extend into it, the muscle opening the closed eye and providing additional elevation when the gaze is directed upward. Synonym: palpebra superior, upper lid. (05 Mar 2000) |
| lid | 1. That which covers the opening of a vessel or box, etc.; a movable cover; as, the lid of a chest or trunk. 2. The cover of the eye; an eyelid. "Tears, big tears, gushed from the rough soldier's lid." (Byron) 3. <botany> The cover of the spore cases of mosses. A calyx which separates from the flower, and falls off in a single piece, as in the Australian Eucalypti. The top of an ovary which opens transversely, as in the fruit of the purslane and the tree which yields Brazil nuts. Origin: AS. Hlid, fr. Hlidan (in comp) to cover, shut; akin to OS. Hlidan (in comp), D. Lid, OHG. Hlit, G. Augenlid eyelid, Icel. Hli gate, gateway. Source: Websters Dictionary (01 Mar 1998) |
| lid-closure reaction | A constriction of both pupils when an effort is made to close eyelids forcibly held apart. A variant of the pupil response to near vision. Synonym: Galassi's pupillary phenomenon, Gifford's reflex, lid-closure reaction, orbicularis phenomenon, orbicularis pupillary reflex, Piltz sign, Westphal's pupillary reflex, Westphal-Piltz phenomenon. (05 Mar 2000) |
| lid crutch spectacles | Spectacles with little offsets of metal with smooth edges which engage above the upper eyelid and keep it raised above the pupil in cases of paralytic blepharoptosis. Synonym: Masselon's spectacles. (05 Mar 2000) |
| lid reflex | A contraction of the eyelids when the cornea is lightly touched with a camel-hair pencil. Synonym: lid reflex. Reflection of light from the surface of the cornea. (05 Mar 2000) |
| lower lid | The inferior, smaller and less mobile of the two eyelids; a check ligament from the inferior rectus muscle extends into it, pulling the lid inferiorly when the gaze is directed downward. Synonym: palpebra inferior, lower lid. (05 Mar 2000) |
| ammonia fixation | The utilization of ammonia (or ammonium ions) in the net synthesis of nitrogen-containing molecules; e.g., glutamine synthetase. Synonym: ammonia fixation. (05 Mar 2000) |
| bifoveal fixation | A condition in which both eyes are simultaneously directed to the same target. Synonym: bifoveal fixation. (05 Mar 2000) |
| binocular fixation | A condition in which both eyes are simultaneously directed to the same target. Synonym: bifoveal fixation. (05 Mar 2000) |
| carbon fixation | <plant biology> The process by which photosynthetic organisms such as plants turn inorganic carbon (usually carbon dioxide) into organic compounds (us. Carbohydrates). (09 Oct 1997) |