| primordium | An aggregation of cells in the embryo indicating the first trace of an organ or structure. Synonym: anlage. Origin: L. Origin, fr. Primus, first, + ordior, to begin (05 Mar 2000) |
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| primosome | <molecular biology> Complex of proteins involved in the synthesis of the RNA primer sequences used in DNA replication. Main components are primase and DNA helicase that move as a unit with the replication fork. Origin: Gr. Soma = body (18 Nov 1997) |
| primrose | <botany> An early flowering plant of the genus Primula (P. Vulgaris) closely allied to the cowslip. There are several varieties, as the white-, the red-, the yellow-flowered, etc. Formerly Synonym: primerole, primerolles. Any plant of the genus Primula. Evening primrose, an erect biennial herb (Enothera biennis), with yellow vespertine flowers, common in the United States. The name is sometimes extended to other species of the same genus. Primrose peerless, the two-flowered Narcissus (N. Biflorus). Origin: OE. Primerole, F. Primerole, a derivative fr. LL. Primula, from L. Primus first. See Prime. Source: Websters Dictionary (01 Mar 1998) |
| primula | <botany> The genus of plants including the primrose (Primula vera). Origin: LL. See Primrose. Source: Websters Dictionary (01 Mar 1998) |
| primulaceous | <botany> Of or pertaining to an order of herbaceous plants (Primulaceae), of which the primrose is the type, and the pimpernel, the cyclamen, and the water violet are other examples. Source: Websters Dictionary (01 Mar 1998) |
| primulin | An acid yellow thiazole dye, C21H14N3O3Na, used as a fluorescent vital stain. (05 Mar 2000) |
| primum mobile | <astronomy> In the Ptolemaic system, the outermost of the revolving concentric spheres constituting the universe, the motion of which was supposed to carry with it all the inclosed spheres with their planets in a daily revolution from east to west. See Crystalline heavens, under Crystalline. "The motions of the greatest persons in a government ought to be, as the motions of the planets, under primum mobile." (Bacon) Origin: L, first cause of motion. Source: Websters Dictionary (01 Mar 1998) |
| primus | First; denoting the first of a series of similar structures. Origin: L. (05 Mar 2000) |
| primer |
A short sequence (of RNA or DNA) from which DNA replication can initiate. May be either a synthetic DNA or RNA or a length of RNA synthesized in vivo by primase.
출처: helios.bto.ed.ac.uk/bto/glossary/p.htm
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| primary organizer |
The term used by Spemann to describe the dorsal lip of the blastopore, meaning that its action established the organization of the entire early embryo.
출처: embryology.med.unsw.edu.au/Notes/Index/P.htm
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| primordial germ cell |
oocyte present in the primordial follicle ovary from birth, located in the stroma of the ovary cortex beneath the tunica albuginea. The primordial follicle is the oocyte and the surrounding follicular cells. (More? Week 1 Notes)
출처: embryology.med.unsw.edu.au/Notes/Index/P.htm
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| primordial follicle |
Present in the ovary from birth, located in the stroma of the ovary cortex beneath the tunica albuginea. The primordial follicle is the oocyte and the surrounding follicular cells. (More? Week 1 Notes)
출처: embryology.med.unsw.edu.au/Notes/Index/P.htm
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| primary cancer |
The first or original cancer.
출처: www.cdc.gov/cancer/lung/glossary.htm
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