| Sec | 1. Abbreviation for selenocycsteine. Insertion into selenoenzymes is accomplished by the specific tRNA(Sec). 2. E. Coli complex for translocation of proteins across the inner membrane, mutants SecA, SecY. (18 Nov 1997) |
|---|---|
| sec 65 | Gene of Saccharomyces cerevisiae that encodes a protein very similar to the SRP19 subunit of the mammalian signal recognition particle. (18 Nov 1997) |
| secale | <botany> A genus of cereal grasses including rye. Origin: L, a kind of grain. Source: Websters Dictionary (01 Mar 1998) |
| secant | 1. <geometry> A line that cuts another; especially, a straight line cutting a curve in two or more points. 2. <mathematics> A right line drawn from the center of a circle through one end of a circular arc, and terminated by a tangent drawn from the other end; the number expressing the ratio line of this line to the radius of the circle. See Trigonometrical function, under Function. Origin: Cf. F. Secante. See Secant. Source: Websters Dictionary (01 Mar 1998) |
| secci disk | A black-and-white disk lowered into the water to measure water transparency, an average is taken of the depth at which the disk disappears when lowered and reappears when raised. (09 Oct 1997) |
| secern | 1. To separate; to distinguish. "Averroes secerns a sense of titillation, and a sense of hunger and thirst." (Sir W. Hamilton) 2. <physiology> To secrete; as, mucus secerned in the nose. Origin: L. Secernere. See Secrete. Source: Websters Dictionary (01 Mar 1998) |
| secernent | <physiology> Secreting; secretory. Origin: L. Secernens, p.pr. 1. That which promotes secretion. 2. <anatomy> A vessel in, or by means of, which the process of secretion takes place; a secreting vessel. Source: Websters Dictionary (01 Mar 1998) |
| Secernentasida | A class of nematodes possessing lateral canals opening into the excretory system and phasmids; it includes most of the familiar nematode parasites of humans and domestic animals, including the soil-borne nematodes, strongyles, and filiariae. See: Adenophorasida. Synonym: Phasmidia, Secernentia. Origin: L. Secerno, to separate, hide (05 Mar 2000) |
| secernentea | A subclass of nematodes characterised by numerous caudal papillae and an excretory system possessing lateral canals. (12 Dec 1998) |
| secernentea infections | Infections with nematodes of the subclass secernentea. (12 Dec 1998) |
| Secernentia | A class of nematodes possessing lateral canals opening into the excretory system and phasmids; it includes most of the familiar nematode parasites of humans and domestic animals, including the soil-borne nematodes, strongyles, and filiariae. See: Adenophorasida. Synonym: Phasmidia, Secernentia. Origin: L. Secerno, to separate, hide (05 Mar 2000) |
| secernment | <physiology> The act or process of secreting. Source: Websters Dictionary (01 Mar 1998) |
| sechium | <botany> The edible fruit of a West Indian plant (Sechium edule) of the Gourd family. It is soft, pear-shaped, and about four inches long, and contains a single large seed. The root of the plant resembles a yam, and is used for food. Origin: NL., cf. F. Sechion; perhaps formed fr. Gr. Cucumber. Source: Websters Dictionary (01 Mar 1998) |
| seckel | <botany> A small reddish brown sweet and juicy pear. It originated on a farm near Philadelphia, afterwards owned by a Mr. Seckel. Source: Websters Dictionary (01 Mar 1998) |
| Seckel dwarfism | <syndrome> An autosomal recessive disorder characterised by low birth weight, dwarfism, microcephaly, large eyes, beaked nose, receding mandible, and moderate mental retardation. Synonym: Seckel dwarfism. (05 Mar 2000) |