| ISR | information storage and retrieval; Institute for Sex Research; Institute of Surgical Research; insul... |
|---|---|
| MDSO | mentally disturbed sex offender |
| SAM | S-adenosyl-L-methionine; scanning acoustic microscope; senescence accelerated mouse; sex arousal mec... |
| SC | conditioned stimulus; sacrococcygeal; Sanitary Corps; scalenus [muscle]; scapula; Schwann cell; scia... |
| SCT | secretin; sex chromatin test; sexual compatibility test; sickle-cell trait; sperm cytotoxicity; spin... |
mats sex
| denumerable character | Classifiable character that is also countable (e.g., number of progeny, number of teeth). Synonym: discrete character. (05 Mar 2000) |
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| discrete character | Classifiable character that is also countable (e.g., number of progeny, number of teeth). Synonym: discrete character. (05 Mar 2000) |
| dominant character | An inherited character determined by one kind of allele. See: phenotype. (05 Mar 2000) |
| inherited character | A single attribute of an animal or plant that is transmitted at one locus from generation to generation in accordance with Mendel's law. See: gene. Synonym: unit character. (05 Mar 2000) |
| unit character | <genetics> A particular trait or characteristic (usually controlled by a single gene or a set of inseparable genes) that is passed on as a unit in heredity. (09 Oct 1997) |
| pili, sex | Filamentous or elongated proteinaceous structures which extend from the cell surface in gram-negative bacteria that contain certain types of conjugative plasmid. These pili are the organs associated with genetic transfer and have essential roles in conjugation. Normally, only one or a few pili occur on a given donor cell. this preferred use of "pili" refers to the sexual appendage, to be distinguished from bacterial fimbriae (fimbriae, bacterial), also known as common pili, which are usually concerned with adhesion. (12 Dec 1998) |
| primary sex characters | The sex glands, testes or ovaries, and the accessory sex organs. (05 Mar 2000) |
| safe sex | Sexual practices that limit the risk of transmitting or acquiring an infectious disease via exchanges of semen, blood, and other bodily fluids, e.g., use of a condom, mutual masturbation, and avoidance of anal intercourse. (05 Mar 2000) |
| heterogametic sex | <biology> The gender which has two different sex chromosomes. For example: In humans, the male is heterogametic because he is XY (has an X chromosome and a Y chromosome). In birds, the female is heterogametic because she is WZ (has a W chromosome and a Z chromosome). Compare: homogametic sex. (09 Oct 1997) |
| secondary sex characters | Those character's peculiar to the male or female that develop at puberty, e.g., the beard of men and the breasts of women. (05 Mar 2000) |
| homogametic sex | <genetics> The gender which has two copies of the same sex chromosome. For example: In humans, the female is homogametic because she is XX (has two copies of the X chromosome). In birds, the male is homogametic because he is ZZ (has two copies of the Z chromosome). Compare: heterogametic sex. (09 Oct 1997) |
| sex | 1. The distinguishing peculiarity of male or female in both animals and plants; the physical difference between male and female; the assemblage of properties or qualities by which male is distinguished from female. 2. One of the two divisions of organic beings formed on the distinction of male and female. 3. <botany> The capability in plants of fertilizing or of being fertilized; as, staminate and pistillate flowers are of opposite sexes. One of the groups founded on this distinction. The sex, the female sex; women, in general. Origin: L. Sexus: cf. F. Sexe. Source: Websters Dictionary (01 Mar 1998) |
| sex attractants | Pheromones that elicit sexual attraction or mating behaviour usually in members of the opposite sex in the same species. (12 Dec 1998) |
| sex behaviour | Sexual activities of humans. (12 Dec 1998) |
| sex behaviour, animal | Sexual activities of animals. (12 Dec 1998) |