| Spens, Thomas | <person> Scottish physician, 1764-1842. See: Spens' syndrome. (05 Mar 2000) |
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| spent | 1. Exhausted; worn out; having lost energy or motive force. "Now thou seest me Spent, overpowered, despairing of success." (Addison) "Heaps of spent arrows fall and strew the ground." (Dryden) 2. <zoology> Exhausted of spawn or sperm; said especially of fishes. Spent ball, a ball shot from a firearm, which reaches an object without having sufficient force to penetrate it. Source: Websters Dictionary (01 Mar 1998) |
| speract | Sea urchin peptide hormone, from the jelly coat of the eggs of the sea urchins Strongylocentrotus purpuratus and Hemicentrotus pulcherrinus, affecting motility and metabolism. Receptor is a plasma membrane guanylate cyclase. (18 Nov 1997) |
| sperling | <zoology> A smelt; a sparling. A young herring. See: Sparling. Source: Websters Dictionary (01 Mar 1998) |
| 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) |
| 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 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) |
Synonyms : Spermatocyte, Spermiocyte
Synonyms :
Synonyms : Spermatogenesis Blocking Agents, Agents, Spermatogenesis Blocking, Agents, Spermatogenesis-Blocking
Synonyms : Spermatogonias, Spermatophore
Synonyms : Spermatozoon, X-Bearing Sperm, X-Chromosome-Bearing Sperm, Y-Bearing Sperm, Y-Chromosome-Bearing Sperm, Sperm, X-Bearing, Sperm, X-Chromosome-Bearing, Sperm, Y-Bearing, Sperm, Y-Chromosome-Bearing, Sperms, X-Bearing, Sperms, X-Chromosome-Bearing, X Bearing Sperm
| spectra |
Dyneema or Spectra is a synthetic fiber, 15 times stronger than steel and three times stronger than Kevlar. It is usually used in bulletproof vests, bow strings and sails on high-performance yachts. Dyneema was invented by DSM in 1979. It has been in commercial production since 1990 at a plant in Heerlen, the Netherlands. In the Far East, DSM has a cooperation agreement with Toyobo Co. for commercial production in Japan. In the United States, DSM has granted a license to Allied Signal. ...
출처: en.wikipedia.org/wiki/Spectra_(fiber)
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| speciation |
Speciation is a process that occurs naturally in evolution and is modeled explicitly in some genetic algorithms. Speciation in nature occurs when two similar reproducing beings evolve to become too dissimilar to share genetic information effectively or correctly. In the case of living organisms, they are incapable of mating to produce offspring. Interesting special cases exist such as a horse and a donkey mating to produce an infertile mule. ...
출처: en.wikipedia.org/wiki/Speciation_(genetic_algorith...
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| sperm- |
A sperm cell, or spermatozoon (pl. spermatozoa) (in Greek: sperm = semen and zoon = alive), is the haploid cell that is the male gamete. It is carried in fluid called semen, and is capable of fertilising an egg cell to form a zygote. A zygote can grow into a new organism, such as a human. Sperm cells contain half of the genetic information needed to create life. ...
출처: en.wikipedia.org/wiki/Sperm
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| speech |
Speech:*(n.) an oral presentation by one person to a group (or sometimes just an individual); closely related terms include: *Conversation (infomal speech by more than one person on a topic), *Debate (formal communication between two groups holding opposing views before an audience), and *the academic discipline of communications.*(v. ...
출처: en.wikipedia.org/wiki/Speech
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| spermatozoan |
A sperm cell, or spermatozoon (pl. spermatozoa) (in Greek: sperm = semen and zoon = alive), is the haploid cell that is the male gamete. It is carried in fluid called semen, and is capable of fertilising an egg cell to form a zygote. A zygote can grow into a new organism, such as a human. Sperm cells contain half of the genetic information needed to create life. ...
출처: en.wikipedia.org/wiki/Spermatozoan
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| SPE | a very small spot |
|---|---|
| SPE | a slight but appreciable addition |
| SPE | (nontechnical usage) a tiny piece of anything |
| SPE | produce specks in or on |
| SPE | having a pattern of dots |
| SPE | a small contrasting part of something |
| SPE | mark with small spots |
| SPE | produce a mottled effect |
| SPE | having a pattern of dots |
| SPE | common shrub of Canada and northeastern United States having shoots scattered with rust-colored down |
| SPE | markings vary but usually harmonize with background |
| SPE | North American freshwater trout |