| ochre | <chemical> A impure earthy ore of iron or a ferruginous clay, usually red (hematite) or yellow (limonite), used as a pigment in making paints, etc. The name is also applied to clays of other colours. A metallic oxide occurring in earthy form; as, tungstic ocher or tungstite. Origin: F.ocre, L. Ochra, fr. Gr, from pale, pale yellow. <chemical> See Ocher. Source: Websters Dictionary (01 Mar 1998) |
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| ochre codon | The codon UAA, one of the three that causes termination of protein synthesis. The most frequent termination codon in E. Coli genes. (18 Nov 1997) |
| ochre mutation | Mutation that changes any codon to the termination codon UAA. (18 Nov 1997) |
| ochre suppressor | A gene that codes for an altered tRNA so that its anticodon can recognise the ochre codon and thus allows the continuation of protein synthesis. A suppressor of an ochre mutation is a tRNA that is charged with the amino acid corresponding to the original codon or a neutral substitute. Ochre suppressors will also suppress amber codons. (18 Nov 1997) |
| ochrea | A sheath, formed from two stipules, encircling the node. (09 Oct 1997) |
| ochreated | 1. Wearing or furnished with an ochrea or legging; wearing boots; booted. "A scholar undertook..to address himself ochreated unto the vice chancellor." (Fuller) 2. <botany> Provided with ochrea, or sheathformed stipules, as the rhubarb, yellow dock, and knotgrass. Source: Websters Dictionary (01 Mar 1998) |
| uran-ochre | <chemical> A yellow, earthy incrustation, consisting essentially of the oxide of uranium, but more or less impure. Origin: Cf. F. Uranochre. Source: Websters Dictionary (01 Mar 1998) |
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| ochre m. |
see nonsense m.
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| ochre | a moderate yellow-orange to orange color |
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| ochre | any of various earths containing silica and alumina and ferric oxide |
| ochre | of a moderate orange-yellow color |
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