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amygdaloid

[uh-mig-duh-loid] /əˈmɪg dəˌlɔɪd/
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, amygdaloidal
2.
(of rocks) containing amygdules.
4.
Anatomy. of or relating to an amygdala.
Origin
1785-1795
1785-95; < Latin amygdal(a) almond + -oid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for amygdaloidal

amygdaloidal

/əˌmɪɡdəˈlɔɪdəl/
adjective
1.
(of a volcanic rock) containing amygdales
2.
a less common form of amygdaloid (sense 2)

amygdaloid

/əˈmɪɡdəˌlɔɪd/
noun
1.
a volcanic igneous rock containing amygdales
adjective
2.
having the shape of an almond
3.
a less common form of amygdaloidal (sense 1)
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
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amygdaloidal in Medicine

amygdaloid a·myg·da·loid (ə-mĭg'də-loid') or a·myg·da·loi·dal (ə-mĭg'də-loid'l)
adj.

  1. Shaped like an almond.

  2. Of or relating to an amygdala.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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