adjective Date: 1813 of, being, or containing small cavities in igneous rock that are filled with deposits of different minerals (as chalcedony or calcite), amygdaloid noun
AMYGDALOIDAL
Meaning of AMYGDALOIDAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012