[ poi-kil-uh-blas-tik, poi-kuh-luh- ]
/ pɔɪˌkɪl əˈblæs tɪk, ˌpɔɪ kə lə- /

adjective Petrography.

(of metamorphic rocks) having small grains of one mineral embedded in metacrysts of another mineral.


Discover The Influence Of Portuguese On English Via This Quiz!
We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?

Origin of poikiloblastic

1915–20; < Greek poikiló(s) various + -blastic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020