amygdaloidal

adjective
amyg·​da·​loi·​dal | \ ə-ˌmig-də-ˈlȯi-dᵊl How to pronounce amygdaloidal (audio) \

Definition of amygdaloidal

: of, being, or containing small cavities in igneous rock that are filled with deposits of different minerals (such as chalcedony)

Other Words from amygdaloidal

amygdaloid \ ə-​ˈmig-​də-​ˌlȯid How to pronounce amygdaloidal (audio) \ noun

First Known Use of amygdaloidal

1797, in the meaning defined above

Learn More About amygdaloidal

Time Traveler for amygdaloidal

Time Traveler

The first known use of amygdaloidal was in 1797

See more words from the same year

Dictionary Entries Near amygdaloidal

amygdaloid

amygdaloidal

Amygdalus

See More Nearby Entries 

Statistics for amygdaloidal

Cite this Entry

“Amygdaloidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amygdaloidal. Accessed 10 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!