cherts

We have found lemma(root) word of cherts : chert.

Definitions


[tʃəːt], (Noun)

Definitions:
- a hard, dark, opaque rock composed of silica (chalcedony) with an amorphous or microscopically fine-grained texture. It occurs as nodules (flint) or, less often, in massive beds


Phrases:

Origin:
late 17th century (originally dialect): of unknown origin




definition by Oxford Dictionaries