noun Petrology.

  1. a volcanic rock in which rounded cavities formed by the expansion of gas or steam have later become filled with deposits of various minerals.

adjective Also a·myg·da·loi·dal.

  1. (of rocks) containing amygdules.
  2. almond-shaped.
  3. Anatomy. of or relating to an amygdala.


  1. a volcanic igneous rock containing amygdales


  1. having the shape of an almond
  2. a less common form of amygdaloidal (def. 1)


  1. Shaped like an almond.
  2. Of or relating to an amygdala.

Leave a Reply

Your email address will not be published. Required fields are marked *

47 queries 1.200