gneissoid

English

Etymology

From gneiss +‎ -oid.

Adjective

gneissoid (comparative more gneissoid, superlative most gneissoid)

1. (geology) Having a structure similar to that of gneiss, or intermediate between that of gneiss and mica or granite

Noun

gneissoid (plural gneissoids)

1. (geology) A metamorphic rock having the composition of a laminated granite