amygdaloid

a·myg·da·loid

A0270500 (ə-mĭg′də-loid′)n. A volcanic rock containing many amygdules.adj. also a·myg·da·loi·dal (-loi′dl)1. Shaped like an almond.2. Anatomy Of or relating to the amygdala.3. Resembling a volcanic rock that contains many amygdules.

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[Latin amygdala, almond; see amygdala + -oid.]

amygdaloid

(əˈmɪɡdəˌlɔɪd) n (Geological Science) a volcanic igneous rock containing amygdalesadj1. having the shape of an almond2. (Geological Science) a less common form of amygdaloidal¹

a•myg•da•loid

(əˈmɪg dəˌlɔɪd)

n. 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. adj. 2. Also, a•myg`da•loi′dal. almond-shaped. [1785–95]

Thesaurus

Noun	1.	amygdaloid - volcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral depositsvolcanic rock - extrusive igneous rock solidified near or on the surface of the Earth
Adj.	1.	amygdaloid - shaped like an almond almond-shaped, amygdaliform, amygdaloidalrounded - curving and somewhat round in shape rather than jagged; "low rounded hills"; "rounded shoulders"