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Source : 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.

Amygdala \A*myg"da*la\ ([.a]*m[i^]g"d[.a]*l[.a]), n.; pl.
   {-l[ae]} (-l[=e]). [L., an almond, fr. Gr. 'amygda`lh. See
   1. An almond.

   2. (Anat.)
      (a) One of the tonsils of the pharynx.
      (b) One of the rounded prominences of the lower surface of
          the lateral hemispheres of the cerebellum, each side
          of the vallecula.

Pseudostella \Pseu`do*stel"la\, n.; pl. {-l[ae]}. [NL., fr. Gr.
   pseydh`s false + L. stella star.] (Astron.)
   Any starlike meteor or phenomenon. [R.]