| SPA | 1) Single Photon Absorptiometry 2) Sperm Penetration Assay |
|---|---|
| ADS | acute death syndrome; acute diarrheal syndrome; Alcohol Dependence Scale; alternative delivery syste... |
| LHD | lateral head displacement [sperm] |
| MS | Maffuci syndrome; maladjustment score; mandibular series; Marfan syndrome; Marie-Strumpell [syndrome... |
| SCA | self-care agency; severe congenital anomaly; sickle-cell anemia; single-camera autostereoscopic [ima... |
| sperm | A reproductive cell produced by the male of an animal species which, when united with an egg (of the same species), results in conception and the development of an embryo. (09 Oct 1997) |
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| sperm agglutination | Agglutination of spermatozoa. (05 Mar 2000) Previous: Spens, Thomas, spent, speract, sperling, sperm, spermaceti, spermacytic seminomaNext: sperm agglutination, spermalist, spermaphore, spermary, sperm-astersperm agglutination Agglutination of spermatozoa by antibodies or autoantibodies. (12 Dec 1998) |
| sperm-aster | Cytocentrum with astral rays in the cytoplasm of an inseminated ovum; it is brought in by the penetrating spermatozoon and evolves into the mitotic spindle of the first cleavage division. Origin: sperm + G. Aster, a star (aster) (05 Mar 2000) |
| sperm bank | A facility where sperm are kept frozen in liquid nitrogen for later use in artificial insemination. (09 Oct 1997) |
| sperm banking | <procedure> The freezing of sperm for future use. This procedure can allow men to father children after loss of fertility, as in the case following chemotherapy for cancer. (12 May 1997) |
| sperm banks | Centres for acquiring and storing semen. (12 Dec 1998) |
| sperm capacitation | The process by which a spermatozoon becomes capable of fertilizing an ovum after it reaches the ampullary portion of the uterine tube. (12 Dec 1998) |
| sperm cell | Mature sperm cell (male gamete). (18 Nov 1997) |
| sperm count | The number of sperm in the ejaculate (when given as the number of sperm per millileter it is more accurately known as the sperm concentration or sperm density). (09 Oct 1997) |
| sperm crystal | A crystal of spermin phosphate found in the semen; possibly identical to Bottcher's crystal's. (05 Mar 2000) |
| sperm head | The anterior, usually ovoid, nucleus-containing part of spermatozoa. (12 Dec 1998) |
| sperm immobilizing agents | Chemical substances with sperm immobilizing activity used as topically administered vaginal contraceptives. (12 Dec 1998) |
| sperm maturation | Posttesticular ripening of spermatozoa. (12 Dec 1998) |
| sperm motility | Ability of the spermatozoon to move by flagellate swimming. (12 Dec 1998) |
| sperm nucleus | The head of the spermatozoon, which becomes spheroidal, after entering the ovum. See: pronucleus. (05 Mar 2000) |