n. [ A humorous variation on the term amber mutation. ] (Microbiology, Molecular biology) A mutation in which the base sequence of one of the codons in the messenger RNA has been converted to UAA. Such a mutation may be conditionally suppressed, as can an amber mutation, by the presence of a special transfer RNA. -- ocher mutant, n. [ PJC ]

a. Ocherous. [ Written also ochrey, ochry. ] [ 1913 Webster ]

n. [ Obs. ] See Occamy. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_; disturbance, fr. 'o`chlos crowd, mob. ] (Med.) A general morbid condition induced by the crowding together of many persons, esp. sick persons, under one roof. G. Gregory. [ 1913 Webster ]

n. [ Gr. &unr_;; 'o`chlos the populace, multitude + kratei^n to be strong, to rule, kra`tos strength: cf. F. ochlocratie. ] A form of government by the multitude; a mobocracy; mob rule. Hare. [ 1913 Webster ]

{ } a. Of or pertaining to ochlocracy; having the form or character of an ochlocracy; mobocratic. [ 1913 Webster ]

-- Och`lo*crat"ic*al*ly, adv. [1913 Webster]

prop. n. A natural family of mammals including pikas and extinct forms.
Syn. -- family Ochotonidae. [ WordNet 1.5 ]

a. Ocherous. [ 1913 Webster ]

n. (Min.) See Ocher. [ 1913 Webster ]

{ } n. [ F. ocre, L. ochra, fr. Gr. &unr_;, from (&unr_;) pale, pale yellow. ] 1. (Min.) (a) 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 colors. (b) A metallic oxide occurring in earthy form; as, tungstic ocher or tungstite. [ 1913 Webster ]

2. The color of ocher{ 1 }, varying around orange, from more yellowish to more reddish in tint. [ PJC ]