chert

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/tʃɜːt/US:USA pronunciation: respellingUSA pronunciation: respelling(chûrt)


WordReference Random House Unabridged Dictionary of American English © 2026
chert  (chûrt),USA pronunciation n. 
  1. Rocksa compact rock consisting essentially of microcrystalline quartz.
  • origin, originally uncertain 1670–80
chert′y, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
chert /tʃɜːt/ n
  1. a microcrystalline form of silica usually occurring as bands or layers of pebbles in sedimentary rock. Formula: SiO2. Varieties include flint, lyddite (Lydian stone)
Etymology: 17th Century: of obscure originˈcherty adj
'chert' also found in these entries (note: many are not synonyms or translations):
novaculite

Forum discussions with the word(s) "chert" in the title:


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