amygdaloid
adjective, noun
Forms amygdaloids
- adjective Shaped like an almond
- adjective (anatomy) Relating to the amygdala
- noun 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.
Synonyms
Etymology
From Ancient Greek ἀμυγδάλη (amugdálē, “almond”) + -oid.
Webster’s 1913
- noun A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.
- adjective Almond-shaped.
- adjective Pertaining to, or having the nature of, the rock amygdaloid.
Etymology [Gr. -oid: cf. F. amygdaloïde.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “amygdaloid”, CC BY-SA 4.0. Details