| retractor | One who, or that which, retracts. Specifically: In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel. <anatomy> A muscle serving to draw in any organ or part. Source: Websters Dictionary (01 Mar 1998) |
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| cheek retractor | <dentistry> Small plastic pieces used to draw back your lips and cheeks so the orthodontist can more easily see you teeth and work in your mouth. (08 Jan 1998) |
| palatine tonsil | A large oval mass of lymphoid tissue embedded in the lateral wall of the oral pharynx on either side between the pillars of the fauces. Synonym: tonsilla palatina, tonsilla, faucial tonsil, tonsil. (05 Mar 2000) |
| Gerlach's tonsil | A collection of lymphoid nodules near the pharyngeal opening of the auditory tube. Synonym: tonsilla tubaria, eustachian tonsil, Gerlach's tonsil. (05 Mar 2000) |
| cerebellar tonsil | A rounded lobule on the undersurface of each cerebellar hemisphere, continuous medially with the uvula of the cerebellar vermis. Synonym: tonsilla cerebelli, amygdala cerebelli. (05 Mar 2000) |
| pharyngeal tonsil | A collection of more or less closely aggregated lymphoid nodules on the posterior wall and roof of the nasopharynx, the hypertrophy of which constitutes the morbid condition called adenoids. Synonym: tonsilla pharyngealis, tonsilla adenoidea, Luschka's gland, Luschka's tonsil, third tonsil. (05 Mar 2000) |
| submerged tonsil | A faucial tonsil that is flat and lying below the level of the pillars of the fauces. (05 Mar 2000) |
| third tonsil | A collection of more or less closely aggregated lymphoid nodules on the posterior wall and roof of the nasopharynx, the hypertrophy of which constitutes the morbid condition called adenoids. Synonym: tonsilla pharyngealis, tonsilla adenoidea, Luschka's gland, Luschka's tonsil, third tonsil. (05 Mar 2000) |
| tonsil | <anatomy> One of the two glandular organs situated in the throat at the sides of the fauces. The tonsils are sometimes called the almonds, from their shape. Origin: L. Tonsill, pl., cf. F. Tonsille. Source: Websters Dictionary (01 Mar 1998) |
| tubal tonsil | A collection of lymphoid nodules near the pharyngeal opening of the auditory tube. Synonym: tonsilla tubaria, eustachian tonsil, Gerlach's tonsil. (05 Mar 2000) |
| eustachian tonsil | A collection of lymphoid nodules near the pharyngeal opening of the auditory tube. Synonym: tonsilla tubaria, eustachian tonsil, Gerlach's tonsil. (05 Mar 2000) |
| faucial tonsil | A large oval mass of lymphoid tissue embedded in the lateral wall of the oral pharynx on either side between the pillars of the fauces. Synonym: tonsilla palatina, tonsilla, faucial tonsil, tonsil. (05 Mar 2000) |
| lingual tonsil | A collection of lymphoid follicles on the posterior or pharyngeal portion of the dorsum of the tongue. Synonym: tonsilla lingualis. (05 Mar 2000) |
| Luschka's tonsil | A collection of more or less closely aggregated lymphoid nodules on the posterior wall and roof of the nasopharynx, the hypertrophy of which constitutes the morbid condition called adenoids. Synonym: tonsilla pharyngealis, tonsilla adenoidea, Luschka's gland, Luschka's tonsil, third tonsil. (05 Mar 2000) |