You searched for: “atmoclast”
atmoclast (s) (noun), atmoclasts (pl)
A piece of rock broken off from its place by atmospheric weathering: Mary's biology teacher showed his students an atmoclast, a fragment of rock that had been chipped off from a bigger rock which was caused by various changes in the atmosphere.
This entry is located in the following units: atmo-, atm- + (page 1) clast-, clas-, -clastic, -clast, -clase, -clasia, -clasis, -clasis, -clasmic, -clasm (page 1)