| condom | <gynaecology> A latex (rubber) sleeve that fits snugly over the penis and is used to prevent pregnancy and sexually transmitted infections such as AIDS, hepatitis and chlamydia. Compare: female condom (04 Jul 1999) |
|---|---|
| seven | One more than six; six and one added; as, seven days make one week. Seven sciences. See the Note under Science. <astronomy> Seven stars, the Pleiades. Seven wonders of the world. See Wonders. <botany> Seven-year apple, a tropical climbing plant (Ipomoea tuberosa) related to the morning-glory. Origin: OE. Seven, seoven, seofen, AS. Seofon, seofan, seofen; akin to D. Zeven, OS, Goth, & OHG. Sibun, G. Sieben, Icel. Sjau, sjo, Sw. Sju, Dan. Syv, Lith. Septyni, Russ. Seme, W. Saith, Gael. Seachd, Ir. Seacht, L. Septem, Gr, Skr. Saptan. Cf. Hebdomad, Heptagon, September. Source: Websters Dictionary (01 Mar 1998) |
| seven-day fever | A fever resembling dengue occurring at the end of the summer in India. Synonym: seven-day fever. Synonym: hasamiyami. (05 Mar 2000) |
| female condom | <gynaecology> A soft, loose-fitting polyurethane sheath, closed at one end, with flexible rings at both ends. The device is inserted into the vagina by compressing the inner ring and pushing it in. Properly positioned, the ring at the closed end covers the cervix, and the sheath lines the walls of the vagina. The outer ring remains outside the vagina, covering the labia. (04 Jul 1999) |
| 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) |
| 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) |