| gnaphalium | <botany> A genus of composite plants with white or coloured dry and persistent involucres; a kind of everlasting. Origin: Nl, from Gr. Wool of the teasel. Source: Websters Dictionary (01 Mar 1998) |
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| gnar | A knot or gnarl in wood; hence, a tough, thickset man; written also gnarr Origin: OE. Knarre, gnarre, akin to OD. Knor, G. Knorren. Cf. Knar, Knur, Gnarl. Source: Websters Dictionary (01 Mar 1998) |
| gnarl | A knot in wood; a large or hard knot, or a protuberance with twisted grain, on a tree. See: gnar. Source: Websters Dictionary (01 Mar 1998) |
| gnashing | The grinding together of the teeth as a nonmasticatory function; sometimes associated with emotional tension. See: bruxism. (05 Mar 2000) |
| gnat | 1. <zoology> A blood-sucking dipterous fly, of the genus Culex, undergoing a metamorphosis in water. The females have a proboscis armed with needlelike organs for penetrating the skin of animals. These are wanting in the males. In America they are generally called mosquitoes. See Mosquito. 2. Any fly resembling a Culex in form or habits; especially, in America, a small biting fly of the genus Simulium and allies, as the buffalo gnat, the black fly, etc. <zoology> Gnat catcher, a bird that catches gnats. Gnat strainer, a person ostentatiously punctilious about trifles. Cf. Origin: AS. Gnaet. Source: Websters Dictionary (01 Mar 1998) |
| gnathastegite | <zoology> One of a pair of broad plates, developed from the outer maxillipeds of crabs, and forming a cover for the other mouth organs. Origin: Gr. The jaw + a roof. Source: Websters Dictionary (01 Mar 1998) |
| gnathic | <anatomy> Of or pertaining to the jaw. Gnathic index, in a skull, the ratio of the distance from the middle of the nasofrontal suture to the basion (taken equal to 100), to the distance from the basion to the middle of the front edge of the upper jaw; called also alveolar index. "Skulls with the gnathic index below 98 are orthognathous, from 98 to 103 mesognathous, and above 103 are prognathous." (Flower) Origin: Gr. The jaw. Source: Websters Dictionary (01 Mar 1998) |
| gnathic index | Relation between the basialveolar (basion to alveolar point) and basinasal (basion to nasion) lengths: (basialveolar length × 100)/basinasal length; the result indicates the degree of projection of the maxilla or upper jaw. Synonym: alveolar index. (05 Mar 2000) |
| gnathidium | Origin: NL, fr. Gr. The jaw. <zoology> The ramus of the lower jaw of a bird as far as it is naked; commonly used in the plural. Source: Websters Dictionary (01 Mar 1998) |
| gnathion | The most inferior point of the mandible in the midline. In cephalometrics, it is the midpoint between the most anterior and inferior point on the bony chin, measured at the intersection of the mandibular baseline and the nasion-pogonion line. Origin: G. Gnathos, jaw (05 Mar 2000) |
| gnathite | <zoology> Any one of the mouth appendages of the Arthropoda. They are known as mandibles, maxillae, and maxillipeds. Origin: Gr. The jaw. Source: Websters Dictionary (01 Mar 1998) |
| gnatho- | The jaw. Origin: G. Gnathos (05 Mar 2000) |
| gnathocephalus | <embryology> A foetal malformation with little of the head formed except the jaws. Origin: Gnatho-+ G. Kephale, head (05 Mar 2000) |
| gnathodynamics | <study> The study of the relationship of the magnitude and direction of the forces developed by and upon the components of the masticatory system during function. Origin: Gnatho-+ G. Dynamis, power (05 Mar 2000) |
| gnathodynamometer | <instrument> A device for measuring biting pressure. Synonym: bite gauge, occlusometer. Origin: Gnatho-+ dynamometer (05 Mar 2000) |