- Intramucosal collection of lymphocytes or aggregated lymphoid tissue closely associated with the overlying epithelium, including the pharyngeal tonsil (adenoid), palatine tonsil, and lingual tonsil, that collectively form a lymphoepithelial ring in the pharynx.
- An anatomic structure resembling the palatine tonsil in form.
See: pharyngeal lymphatic ring
Synonym(s): palatine tonsil
[L. tonsilla, a stake, in pl. the tonsils]
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