one of the mineral nodules in an amygdaloid.
Also a·myg·dale [uh-mig-deyl] /əˈmɪg deɪl/.
Origin of amygdule
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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 calciteAlso called: amygdule (əˈmɪɡdjuːl)
Word Origin for amygdale
C19: from Greek: almond
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012