| artificial tears | Mixtures of fluid compounds to substitute for naturally produced t's. (05 Mar 2000) |
|---|---|
| plus | 1. <mathematics> More, required to be added; positive, as distinguished from negative; opposed to minus. 2. Hence, in a literary sense, additional; real; actual. "Success goes invariably with a certain plus or positive power." (Emerson) 3. <mathematics> Plus sign, the sign (+) which denotes addition, or a positive quantity. Origin: L, more; akin to Gr, and cf. Piu, Pleonasm. (11 Mar 1998) |
| plus lens | A converging lens. Synonym: plus lens. (05 Mar 2000) |
| plus strand | See: replicative form. (05 Mar 2000) |
| crocodile tears | See: crocodile tears syndrome. (05 Mar 2000) |
| crocodile tears syndrome | <syndrome> A flow of tears, usually unilateral, upon eating or the anticipation of eating; this happens when nerve fibres originally destined for a salivary gland are damaged and regrow, aberrantly, into the lacrimal gland. (05 Mar 2000) |
| tears | The watery secretion of the lacrimal glands which serve to moisten the conjunctiva; the secretion is slightly alkaline and saline. (12 Dec 1998) |
| fluorescence plus Giemsa stain | <technique> A stain used to demonstrate sister chromatid exchange; cells are grown in 5-bromodeoxyuridine, followed by chromosome preparation, staining in Hoechst 33258, exposure to light, and staining in Giemsa; chromosomes exhibit a "harlequin" appearance. (05 Mar 2000) |