| terra | The earth; earth. Terra alba [L, white earth. Barite, or heavy spar. Terra di Sienna. See Sienna. Origin: It. & L. See Terrace. Source: Websters Dictionary (01 Mar 1998) |
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| terra japonica | An extract from the leaves of Uncaria (Ourouparia) gambier (family Rubiaceae); an astringent. Commercial gambir is known as terra japonica. (05 Mar 2000) |
| terrace | 1. A raised level space, shelf, or platform of earth, supported on one or more sides by a wall, a bank of tuft, or the like, whether designed for use or pleasure. 2. A balcony, especially a large and uncovered one. 3. A flat roof to a house; as, the buildings of the Oriental nations are covered with terraces. 4. A street, or a row of houses, on a bank or the side of a hill; hence, any street, or row of houses. 5. <geology> A level plain, usually with a steep front, bordering a river, a lake, or sometimes the sea. Many rivers are bordered by a series of terraces at different levels, indicating the flood plains at successive periods in their history. Terrace epoch. <geology> See Drift epoch, under Drift. Origin: F. Terrasse (cf. Sp. Terraza, It. Terrazza), fr. L. Terra the earth, probably for tersa, originally meaning, dry land, and akin to torrere to parch, E. Torrid, and thirst. See Thirst, and cf. Fumitory, Inter, Patterre, Terrier, Trass, Tureen, Turmeric. Source: Websters Dictionary (01 Mar 1998) |
| terraculture | Cultivation on the earth; agriculture. Terracul"tural. Origin: L. Terra the earth + cultura. Source: Websters Dictionary (01 Mar 1998) |
| terrane | <geology> A group of rocks having a common age or origin; nearly equivalent to formation, but used somewhat less comprehensively. Origin: F. Terrain, from L. Terra earth. Source: Websters Dictionary (01 Mar 1998) |
| terrapin | <zoology> Any one of numerous species of tortoises living in fresh and brackish waters. Many of them are valued for food. Alternative forms: terapin, terrapen, terrapene, and turapen. The yellow-bellied terrapin (Pseudemys acebra) of the Southern United States, the red-bellied terrapin (Pseudemys rugosa), native of the tributaries Chesapeake Bay (called also potter, slider, and redfender), and the diamond-back or salt-marsh terrapin (Malaclemmys palustris), are the most important American species. The diamond-back terrapin is native of nearly the whole of the Atlantic coast of the United States. Alligator terrapin, the snapping turtle. Mud terrapin, any one of numerous species of American tortoises of the genus Cinosternon. Painted terrapin, the painted turtle. See Painted. Speckled terrapin, a small fresh water American terrapin (Chelopus guttatus) having the carapace black with round yellow spots. Synonym: spotted turtle. Origin: Probably of American Indian origin. Source: Websters Dictionary (01 Mar 1998) |
| terras | <chemical> See rass. Source: Websters Dictionary (01 Mar 1998) |
| terrel | A spherical magnet so placed that its poles, equator, etc, correspond to those of the earth. Origin: NL. Terrella, from L. Terra the earth. Source: Websters Dictionary (01 Mar 1998) |
| terrestrial | <ecology> Of or on the ground, of the habitat of a plant, on land as opposed to in water, or on the ground as opposed to on another plant. (13 Jan 1998) |
| Terrey, Mary | <person> 20th century U.S. Physician. See: Lowe-Terrey-MacLachlan syndrome. (05 Mar 2000) |
| terricolae | <zoology> A division of annelids including the common earthworms and allied species. Origin: NL, fr. L. Terra + colere to inhabit. Source: Websters Dictionary (01 Mar 1998) |
| Terrien's marginal degeneration | A form of marginal corneal degeneration. (05 Mar 2000) |
| Terrien's valve | A valvelike fold between the gallbladder and the cystic duct; the first ridge of the spiral fold of the cystic duct. (05 Mar 2000) |
| Terrien, Louis-Felix | <person> French surgeon, 1837-1908. See: Terrien's valve, Terrien's marginal degeneration. (05 Mar 2000) |
| terrienniak | <zoology> The arctic fox. Source: Websters Dictionary (01 Mar 1998) |