1. containing, resembling, or composed of chert (a hard, fine-grained sedimentary rock)
Usage: geology; technical

Examples

• The cherty limestone contained numerous fossils embedded in its hard matrix.
• Geologists identified the cherty nodules scattered throughout the rock formation.
• The cherty soil made digging difficult for the construction crew.
• This cherty deposit is rich in silica and was historically used to make tools.
• The riverbed was covered with cherty pebbles that had been smoothed by water.