microlitic

[ mahy-kruh-lit-ik ]
/ ˌmaɪ krəˈlɪt ɪk /

adjective Petrography.

of or relating to the texture of a porphyry whose groundmass consists of microlites in a glassy matrix.

Origin of microlitic

First recorded in 1875–80; microlite + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019