grav·el
(grăv′əl)n.1. An unconsolidated mixture of rock fragments or pebbles.
2. Medicine The sandlike granular material of urinary calculi.
tr.v. grav·eled,
grav·el·ing,
grav·els or
grav·elled or
grav·el·ling 1. To apply a surface of rock fragments or pebbles to.
2. To confuse; perplex.
3. Informal To irritate.
[Middle English, from Old French gravele, diminutive of grave, pebbly shore, of Celtic origin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.