- any coarse rock, as breccia or conglomerate.
Origin of psephite
< Greek psêph(os) pebble + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any rock, such as a breccia, that consists of large fragments embedded in a finer matrix
C19: via French from Greek psēphos a pebble
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