| tigella | <botany> That part of an embryo which represents the young stem; the caulicle or radicle. Origin: NL, from F. Tige stem or stock. Source: Websters Dictionary (01 Mar 1998) |
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| tigelle | <botany> Same as Tigella. Origin: F. Source: Websters Dictionary (01 Mar 1998) |
| tiger | 1. A very large and powerful carnivore (Felis tigris) native of Southern Asia and the East Indies. Its back and sides are tawny or rufous yellow, transversely striped with black, the tail is ringed with black, the throat and belly are nearly white. When full grown, it equals or exceeds the lion in size and strength. Synonym: royal tiger, and Bengal tiger. 2. A ferocious, bloodthirsty person. "As for heinous tiger, Tamora." (Shak) 3. A servant in livery, who rids with his master or mistress. 4. A kind of growl or screech, after cheering; as, three cheers and a tiger. 5. A pneumatic box or pan used in refining sugar. American tiger. <zoology> Any one of several species of wild cats of moderate size with dark transverse bars or stripes somewhat resembling those of the tiger. <botany> Tiger flower, the spotted hyena (Hyaena crocuta). Tiger wood, the variegated heartwood of a tree (Machaerium Schomburgkii) found in Guiana. Origin: OE. Tigre, F. Tigre, L. Tigris, Gr. Tigris; probably of Persian origin; cf. Zend tighra pointed, tighri an arrow, Per. Tir; perhaps akin to E. Stick, v.t.; probably so named from its quickness. Source: Websters Dictionary (01 Mar 1998) |
| tiger heart | A fatty degenerated heart in which the fat is disposed in the form of broken stripes in the subendocardial myocardium. (05 Mar 2000) |
| tiger's-foot | <botany> A name given to some species of morning-glory (Ipomoea) having the leaves lobed in pedate fashion. Source: Websters Dictionary (01 Mar 1998) |
| tiger-eye | <chemical> A siliceous stone of a yellow colour and chatoyant luster, obtained in South Africa and much used for ornament. It is an altered form of the mineral crocidolite. See Crocidolite. Source: Websters Dictionary (01 Mar 1998) |
| tiger-foot | <botany> Same as Tiger's-foot. Source: Websters Dictionary (01 Mar 1998) |
| tight junction | <cell biology> Specialised intercellular junction in which the two plasma membranes are separated by only 1-2nm. Found near the apical surface of cells in simple epithelia, forms a sealing gasket around the cell. Prevents fluid moving through the intercellular gap and the lateral diffusion of intrinsic membrane proteins between apical and baso lateral domains of the plasma membrane. (18 Nov 1997) |
| tight junctions | Cell-cell junctions that seal adjacent epithelial cells together, preventing the passage of most dissolved molecules from one side of the epithelial sheet to the other. (alberts et al., molecular biology of the cell, 2nd ed, pg-22) (12 Dec 1998) |
| tightening your braces | <dentistry> A process which occurs every 3-6 weeks when you have braces. You go into the orthodontist's office and the orthodontist's assistant either makes adjustments to the wires in your braces, or changes the wires. (08 Jan 1998) |
| tiglate | A salt or ester of tiglic acid. (05 Mar 2000) |
| tiglian | Original trivial name for the saturated form of phorbol. Origin: fr. Croton tiglium (Euphorbiaceae) (05 Mar 2000) |
| tiglic | <chemistry> Of, pertaining to, or designating, an acid, C4H7CO2H (called also methyl crotonic acid), homologous with crotonic acid, and obtained from croton oil (from Croton Tiglium) as a white crystalline substance. Source: Websters Dictionary (01 Mar 1998) |
| tiglic acid | CH3CH==C(CH3)COOH; (E)-2-Methyl-2-butenoic acid; trans-2,3-dimethyl-acrylic acid;an unsaturated fatty acid present in glycerides in croton oil. (05 Mar 2000) |
| tigloyl-CoA-13-hydroxymultiflorine-13-hydroxyupanine O-tigloyltransferase | <enzyme> Catalyses the tigloyl transfer from tigloyl-CoA to 13-hydroxymultiflorine and 13-hydroxyupanine Registry number: EC 2.3.1.- Synonym: hmt-hltase (26 Jun 1999) |