資料來源 : Webster's Revised Unabridged Dictionary (1913)

Lingula \Lin"gu*la\ (l[i^][ng]"g[-u]*l[.a]), n.; pl. {-l[ae]}
   (-l[=e]). [L., a little tongue.]
   1. (Anat.) A tonguelike process or part.

   2. (Zo["o]l.) Any one of numerous species of brachiopod
      shells belonging to the genus {Lingula}, and related
      genera. See {Brachiopoda}, and Illustration in Appendix.

   {Lingula flags} (Geol.), a group of strata in the lower
      Silurian or Cambrian system of Wales, in which some of the
      layers contain vast numbers of a species of Lingula.