| tonsils | A collection of lymphoid tissue covered by mucous membranes located in several different areas on either side of the throat. (27 Sep 1997) |
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| tonsure | 1. The act of clipping the hair, or of shaving the crown of the head; also, the state of being shorn. 2. The first ceremony used for devoting a person to the service of God and the church; the first degree of the clericate, given by a bishop, abbot, or cardinal priest, consisting in cutting off the hair from a circular space at the back of the head, with prayers and benedictions; hence, entrance or admission into minor orders. The shaven corona, or crown, which priests wear as a mark of their order and of their rank. Origin: F, fr. L. Tonsura a shearing, clipping, from tondere, tonsum, to shear, shave; cf. Gr. To gnaw; perhaps akin to Gr. To cut, and E. Tome. Source: Websters Dictionary (01 Mar 1998) |
| tonus | <physiology> Tonicity, or tone; as, muscular tonus. Origin: L. A sound, tone. See Tone. Source: Websters Dictionary (01 Mar 1998) |