amygdaloid
English edit
Etymology edit
From Ancient Greek ἀμυγδάλη (amugdálē, “almond”) + -oid.
Adjective edit
amygdaloid (not comparable)
Translations edit
shaped like an almond
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Noun edit
amygdaloid (countable and uncountable, plural amygdaloids)
- A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, especially agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.