| mutate | Change in the genetic material (DNA) inside the cell. (16 Dec 1997) |
|---|---|
| mutation | 1. A change in form, quality or some other characteristic. 2. <genetics> A permanent transmissible change in the genetic material, usually in a single gene. Also, an individual exhibiting such a change. Also called (in classical genetics) a sport. Origin: L. Mutatio from mutare = to change (18 Nov 1997) |
| mutation rate | The frequency with which a particular mutation appears in a population or the frequency with which any mutation appears in the whole genome of a population. Normally the context makes the precise use clear. See: fluctuation analysis. (18 Nov 1997) |
| mutational frequency | The proportions of mutations in a population. (05 Mar 2000) |
| mutatis characteribus | <zoology> With the characters changed, used in same way as emendatus. (09 Jan 1998) |
| mutch | The close linen or muslin cap of an old woman. Origin: Cf. D. Mutse a cap, G. Mutze. Cf. Amice a cape. Source: Websters Dictionary (01 Mar 1998) |
| mute | 1. One who does not speak, whether from physical inability, unwillingness, or other cause. Specifically: One who, from deafness, either congenital or from early life, is unable to use articulate language; a deaf-mute. A person employed by undertakers at a funeral. A person whose part in a play does not require him to speak. Among the Turks, an officer or attendant who is selected for his place because he can not speak. 2. A letter which represents no sound; a silent letter; also, a close articulation; an element of speech formed by a position of the mouth organs which stops the passage of the breath; as, p, b, d, k, t. 3. A little utensil made of brass, ivory, or other material, so formed that it can be fixed in an erect position on the bridge of a violin, or similar instrument, in order to deaden or soften the tone. 1. Not speaking; uttering no sound; silent. "All the heavenly choir stood mute, And silence was in heaven." (Milton) In law a prisoner is said to stand mute, when, upon being arranged, he makes no answer, or does not plead directly, or will not put himself on trial. 2. Incapable of speaking; dumb. 3. Not uttered; unpronounced; silent; also, produced by complete closure of the mouth organs which interrupt the passage of breath; said of certain letters. See 5th Mute. 4. Not giving a ringing sound when struck; said of a metal. <zoology> Mute swan, a European wild white swan (Cygnus gibbus), which produces no loud notes. Synonym: Silent, dumb, speechless. Mute, Silent, Dumb. One is silent who does not speak; one is dumb who can not, for want of the proper organs; as, a dumb beast, etc.; and hence, figuratively, we speak of a person as struck dumb with astonishment, etc. One is mute who is held back from speaking by some special cause; as, he was mute through fear; mute astonishment, etc. Such is the case with most of those who never speak from childhood; they are not ordinarily dumb, but mute because they are deaf, and therefore never learn to talk; and hence their more appropriate name is deaf-mutes. "They spake not a word; But, like dumb statues, or breathing stones, Gazed each on other." (Shak) "All sat mute, Pondering the danger with deep thoughts." (Milton) Origin: L. Mutus; cf. Gr. To shut, Skr. Mta bound, mka dumb: cf. OE. Muet, fr. F. Muet, a dim. Of OF. Mu, L. Mutus. Source: Websters Dictionary (01 Mar 1998) |
| muted tidal regime | A fluctuation in a wetland's water level that is lower in amplitude than the fluctuation in a neighboring tidal body of water, due to levees or other artificial devices which inhibit the exchange of water between the wetland and the tidal body. (09 Oct 1997) |
| mutein | <protein> Protein with altered amino acid sequence usually enough to alter properties. (18 Nov 1997) |
| muticous | <botany> Without a point or pointed process; blunt. Origin: L. Muticus, for mutilus. See Mutilate. Source: Websters Dictionary (01 Mar 1998) |
| mutilate | 1. Deprived of, or having lost, an important part; mutilated. 2. <zoology> Having finlike appendages or flukes instead of legs, as a cetacean. Origin: L. Mutilatus, p.p. Of mutilare to mutilate, fr. Mutilus maimed; cf. Gr, . Cf. Mutton. <zoology> A cetacean, or a sirenian. Source: Websters Dictionary (01 Mar 1998) |
| mutilating keratoderma | Diffuse keratoderma of the extremities, with the development during childhood of constricting fibrous bands around the middle phalanx of the fingers or toes which may lead to spontaneous amputation; autosomal dominant inheritance. Synonym: keratoma hereditarium mutilans, Vohwinkel syndrome. (05 Mar 2000) |
| mutilating leprosy | A late stage of anaesthetic leprosy. Synonym: mutilating leprosy. (05 Mar 2000) |
| mutilation | Disfigurement or injury by removal or destruction of any conspicuous or essential part of the body. Origin: L. Mutilatio, fr. Mutilo, pp. -atus, to maim (05 Mar 2000) |
| mutism | Inability or refusal to speak. Origin: L. Mutus = unable to speak, inarticulate (18 Nov 1997) |