amygdale

enUK

a·myg·dale

A0270200 (ə-mĭg′dāl)n. An amygdule.
[From Latin amygdala, almond; see amygdala.]

amygdale

(əˈmɪɡdeɪl) or

amygdule

n (Geological Science) a vesicle in a volcanic rock, formed from a bubble of escaping gas, that has become filled with light-coloured minerals, such as quartz and calcite[C19: from Greek: almond]