amygdaloid
English
editEtymology
editFrom Ancient Greek ἀμυγδάλη (amugdálē, “almond”) + -oid.
Adjective
editamygdaloid (not comparable)
Translations
editshaped like an almond
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Noun
editamygdaloid (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.