| tongue thrust | The infantile pattern of the suckle-swallow movement in which the tongue is placed between the incisor teeth or the alveolar ridges during the initial stage of swallowing, resulting sometimes in an anterior open bite. (05 Mar 2000) |
|---|
| thrust | 1. A violent push or driving, as with a pointed weapon moved in the direction of its length, or with the hand or foot, or with any instrument; a stab; a word much used as a term of fencing. "[Polites] Pyrrhus with his lance pursues, And often reaches, and his thrusts renews." (Dryden) 2. An attack; an assault. "One thrust at your pure, pretended mechanism." (Dr. H. More) 3., a horizontal or diagonal outward pressure, as of an arch against its abutments, or of rafters against the wall which support them. 4. <chemical> The breaking down of the roof of a gallery under its superincumbent weight. Thrust bearing, a bearing arranged to receive the thrust or endwise pressure of the screw shaft. <geology> Thrust plane, the surface along which dislocation has taken place in the case of a reversed fault. Synonym: Push, shove, assault, attack. Thrust, Push, Shove. Push and shove usually imply the application of force by a body already in contact with the body to be impelled. Thrust, often, but not always, implies the impulse or application of force by a body which is in motion before it reaches the body to be impelled. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| adder's-tongue | <botany> A genus of ferns (Ophioglossum), whose seeds are produced on a spike resembling a serpent's tongue. The yellow dogtooth violet. Source: Websters Dictionary (01 Mar 1998) |
| anti-black-tongue factor | A precursor of NAD, that is a product of the oxidation of nicotine. (18 Nov 1997) |
| baked tongue | The dry blackish tongue noted when patients with typhoid fever or other disorders are allowed to become dehydrated. (05 Mar 2000) |
| bald tongue | An erythematous, edematous, and painful tongue which appears smooth due to loss of the filiform and sometimes the fungiform papillae secondary to certain nutritional deficiencies, especially B-vitamin deficencies, as seen in pellagra, thiamin deficiency, and disorders such as pernicious anaemia (Hunter's or Moeller's glossitis). Synonym: bald tongue. (05 Mar 2000) |
| base of tongue | The posterior attached portion of the tongue. Synonym: radix linguae, base of tongue. (05 Mar 2000) |
| beet-tongue | Sometimes used of the tongue in pellagra, where intense erythema appears, first at the tip, then along the edges, and finally over the dorsum; there may be pain and increased elevation; the shiny appearance results from oedema, not atrophy, except in chronic pellagra. (05 Mar 2000) |
| bifid tongue | A structural defect of the tongue in which the extremity is divided longitudinally for a greater or lesser distance. See: diglossia. Synonym: cleft tongue. (05 Mar 2000) |
| bird's-tongue | <botany> The knotgrass (Polygonum aviculare). Source: Websters Dictionary (01 Mar 1998) |
| black tongue | In canines, a disorder associated with a deficency of nicotinic acid. Black to yellowish brown discoloration of the dorsum of the tongue due to staining by exogenous material such as the components of tobacco; usually superimposed on hairy tongue. Synonym: lingua nigra, melanoglossia, nigrities linguae. (05 Mar 2000) |
| black-tongue disease | A disease of dogs similar to human pellagra and due to niacin deficiency. (05 Mar 2000) |
| blind foramen of the tongue | <anatomy> A median pit on the dorsum of the posterior part of the tongue, from which the limbs of a V-shaped furrow run forward and outward; it is the site of origin of the thyroid gland and subsequent thyroglossal duct in the embryo. Synonym: foramen caecum linguae, blind foramen of the tongue, caecal foramen of the tongue, Morgagni's foramen, pleuroperitoneal foramen. (05 Mar 2000) |
| body of tongue | The oral part of the tongue anterior to the terminal sulcus. Synonym: corpus linguae. (05 Mar 2000) |
| caecal foramen of the tongue | <anatomy> A median pit on the dorsum of the posterior part of the tongue, from which the limbs of a V-shaped furrow run forward and outward; it is the site of origin of the thyroid gland and subsequent thyroglossal duct in the embryo. Synonym: foramen caecum linguae, blind foramen of the tongue, caecal foramen of the tongue, Morgagni's foramen, pleuroperitoneal foramen. (05 Mar 2000) |
| magenta tongue | Purplish red colouration of the tongue, with oedema and flattening of the filiform papillae, occurring in riboflavin deficiency. Compare: cyanosis. (05 Mar 2000) |