rock hound

or rock·hound

Origin of rock hound

An Americanism dating back to 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for rock-hound

geologist

Word Origin and History for rock-hound
n.

1921, from rock (n.1) + hound (n.). Used variously of geologists, mineralogists, and amateur collectors.

Online Etymology Dictionary, © 2010 Douglas Harper