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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019