adj, noun ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   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. countable, uncountable
2. 2
   volcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral deposits wordnet

Adjective

1. 1
   Shaped like an almond not-comparable
2. 2
   Relating to the amygdala not-comparable

Adjective

1. 1
   shaped like an almond wordnet

Synonyms

All synonyms

almond shapedalmond-shapedamygdaliformamygdaloidalmandelsteinmandlestone

Etymology

From Ancient Greek ἀμυγδάλη (amugdálē, “almond”) + -oid.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.