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rock climb
rock climbing
Rock Cornish
rock crab
rock crystal
rock dove
rock elm
rock face
rock flour
rock garden
rock-hard
Rock Hill
rock hound
rock hyrax
Rock Island
rock lobster
rock maple
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rock flour
rock flour


noun 
Definition:
 
powdery rock particles: fine powdery rock produced by grinding or abrasion, e.g. by the movement of a glacier
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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