amygdule

[ uh-mig-dool, -dyool ]
/ əˈmɪg dul, -dyul /

noun Petrology.

one of the mineral nodules in an amygdaloid.
Also a·myg·dale [uh-mig-deyl] /əˈmɪg deɪl/.

Origin of amygdule

First recorded in 1875–80; amygd(ala) + -ule

British Dictionary definitions for amygdale

amygdale
/ (əˈmɪɡdeɪl) /

noun

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 Also called: amygdule (əˈmɪɡdjuːl)

Word Origin for amygdale

C19: from Greek: almond