| spermia | Plural of spermium. (05 Mar 2000) |
|---|---|
| spermicidal | Destructive to spermatozoa. Synonym: spermicidal. (05 Mar 2000) |
| spermicide | <pharmacology> An agent that is destructive to spermatozoa. (18 Nov 1997) |
| spermidine | <biochemistry> A polybasic amine. See: spermine. (18 Nov 1997) |
| spermidine acetylase | <enzyme> Froms monoacetylspermidine from acetyl-CoA and spermidine Registry number: EC 2.3.1.- (26 Jun 1999) |
| spermidine acetyltransferase | <enzyme> Involved in conversion of spermidine into putrescine; csat refers to n1-acetyltransferse; nsat refers to n8-acetyltransferase Registry number: EC 2.3.1.57 Synonym: spermidine-spermine n(1)-acetyltransferase, diamine acetyltransferase, csat transferase, nsat transferase, spermidine n(8)-acetyltransferase, spermidine n1-acetyltransferase, spermidine n8-acetyltransferase, putrescine n-acetyltransferase (26 Jun 1999) |
| spermidine synthase | <enzyme> An enzyme that catalyses the transfer of the propylamine moiety from 5'-deoxy-5'-s-(3-methylthiopropylamine)sulfonium adenosine to putrescine in the biosynthesis of spermidine. The enzyme has a molecular weight of approximately 73,000 kD and is composed of two subunits of equal size. Chemical name: S-Adenosylmethioninamine:putrescine 3-aminopropyltransferase Registry number: EC 2.5.1.16 (12 Dec 1998) |
| spermidium | Origin: Nl, fr. Gr. Seed. <botany> An achenium. Source: Websters Dictionary (01 Mar 1998) |
| spermiduct | Synonym: ductus deferens. Synonym: ejaculatory duct. (05 Mar 2000) |
| spermine | <biochemistry> Polybasic amine. Found in human sperm, in ribosomes and in some viruses. Involved in nucleic acid packaging. Synthesis is regulated by ornithine decarboxylase which plays a key role in control of DNA replication. (18 Nov 1997) |
| spermine synthase | <enzyme> An enzyme that catalyses the transfer of the propylamine moiety from 5'-deoxy-5'-s-(3-methylthiopropylamine)sulfonium adenosine to spermidine in the biosynthesis of spermine. It has an acidic isoelectric point at pH 5.0. Chemical name: S-Adenosylmethioninamine:spermidine 3-aminopropyltransferase Registry number: EC 2.5.1.22 (12 Dec 1998) |
| spermiogenesis | That segment of spermatogenesis during which immature spermatids become spermatozoa. Origin: sperm-+ G. Genesis, origin (05 Mar 2000) |
| spermism | The belief by preformationists that the male sex cell (sperm) contains a miniature preformed body called the homunculus. (05 Mar 2000) |
| spermist | <biology> A believer in the doctrine, formerly current, of encasement in the male (see Encasement), in which the seminal thread, or spermatozoid, was considered as the real animal germ, the head being the true animal head and the tail the body. Source: Websters Dictionary (01 Mar 1998) |
| spermium | H.W.G. Waldeyer's term for the mature male germ cell or spermatozoon. (05 Mar 2000) |
Synonyms :
Synonyms : Putrescine Aminopropyltransferase, Aminopropyltransferase, Putrescine, Synthase, Spermidine, Synthetase, Spermidine, Transferase, Propylamine
Synonyms :
Synonyms : Spermidine Aminopropyltransferase, Aminopropyltransferase, Spermidine, Synthase, Spermine, Synthetase, Spermine
| spermicidal |
destructive to spermatozoa
Ãâó: wordnet.princeton.edu/perl/webwn
|
|---|---|
| spermicide |
a contraceptive agent that kills spermatozoa
Ãâó: wordnet.princeton.edu/perl/webwn
|
| spermicide |
A sperm-killing chemical agent. 375
Ãâó: highered.mcgraw-hill.com/sites/007241278x/student_...
|
| spermiation |
The release of mature spermatozoa from the surface of the Sertoli cell into the lumen of the seminiferous tubule.
Ãâó: www.nature.com/nrg/journal/v3/n10/glossary/nrg911_...
|
| spermiogenesis |
The stage of spermatogenesis during which spermatids undergo cell remodelling and DNA compaction.
Ãâó: www.nature.com/nrg/journal/v3/n10/glossary/nrg911_...
|
| spermi | destructive to spermatozoa |
|---|---|
| spermi | a contraceptive agent that kills spermatozoa |
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