| 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) |
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| thrustle | <zoology> The throstle, or song thrust. "When he heard the thrustel sing." (Chaucer) Source: Websters Dictionary (01 Mar 1998) |
| 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) |
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