noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A fine-grained sedimentary rock, intermediate between shale and slate, sometimes used as a building material
2. 2
   a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavages wordnet

Synonyms

All synonyms

claystonemudstoneshaleslate

Antonyms

All antonyms

granitesandstoneunmetamorphosed mudstone