| CET | capital expenditure threshold; congenital eyelid tetrad |
|---|---|
| LUL | left upper eyelid; left upper limb; left upper lobe; left upper lung |
| RUL | right upper eyelid; right upper lateral; right upper limb; right upper lobe |
| bivalve speculum | A speculum with two adjustable blades. (05 Mar 2000) |
|---|---|
| Pedersen's speculum | A narrow flat speculum used in vaginas with a narrow introitus. (05 Mar 2000) |
| Cooke's speculum | A three-pronged speculum for rectal examinations and operations. (05 Mar 2000) |
| speculum | Origin: L, fr. Specere to look, behold. See Spy. 1. A mirror, or looking-glass; especially, a metal mirror, as in Greek and Roman archaeology. 2. A reflector of polished metal, especially one used in reflecting telescopes. See Speculum metal, below. 3. <surgery> An instrument for dilating certain passages of the body, and throwing light within them, thus facilitating examination or surgical operations. 4. <ornithology> A bright and lustrous patch of colour found on the wings of ducks and some other birds. It is usually situated on the distal portions of the secondary quills, and is much more brilliant in the adult male than in the female. Speculum metal, a hard, brittle alloy used for making the reflectors of telescopes and other instruments, usually consisting of copper and tin in various proportions, one of the best being that in which there are 126.4 parts of copper to 58.9 parts of tin, with sometimes a small proportion of arsenic, antimony, or zinc added to improve the whiteness. Source: Websters Dictionary (01 Mar 1998) |
| speculum forceps | A tubular forceps for use through a speculum. (05 Mar 2000) |
| stop-speculum | A dilating speculum, as a speculum of the eyelids, which is provided with a catch to prevent its being opened too wide. (05 Mar 2000) |
| duckbill speculum | A bivalve speculum, the blades of which are broad and flattened, resembling a duck's bill, used in inspection of the vagina and cervix. (05 Mar 2000) |
| eye speculum | An instrument for keeping the eyelids apart during inspection of or operation on the eye. Synonym: blepharostat. (05 Mar 2000) |
| Kelly's rectal speculum | A tubular speculum with obturator for rectal examination. (05 Mar 2000) |
| arterial arch of lower eyelid | Formed by the medial palpebral artery which communicates with a branch of the lacrimal artery along the tarsal margin. Synonym: arcus palpebralis inferior. (05 Mar 2000) |
| arterial arch of upper eyelid | Formed by communicating branches of the medial and lateral palpebral arteries. Often two arches are present, one located near the free border of the tarsal plate, the other along the upper border of the tarsus. Synonym: arcus palpebralis superior. (05 Mar 2000) |
| veins of inferior eyelid | Veins of inferior eyelid; veins originatin gin the inferior eyelid and emptying into the angular vein. Synonym: venae palpebrales inferiores, veins of inferior eyelid. (05 Mar 2000) |
| veins of superior eyelid | Veins draining the superior eyelid anteriorly into the angular vein. Synonym: venae palpebrales superiores, veins of superior eyelid. (05 Mar 2000) |
| conditioning, eyelid | Reflex closure of the eyelid occurring as a result of classical conditioning. (12 Dec 1998) |
| third eyelid | The semilunar fold formed by the palpebral conjunctiva at the medial angle of the eye, a fold of the conjunctival mucous membrane found in many animals; normally partially hidden in the medial canthus of the eye when at rest, it may be extended to cover part or all of the cornea in a winking-like action to clean the cornea, as in birds. Synonym: membrana nictitans, nictitating membrane, palpebra III, palpebra tertia, third eyelid. Synonym: plica lunata, plica semilunaris of eye, semilunar conjunctival fold. (05 Mar 2000) |
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