The Collaborative International Dictionary of English v.0.48:
Gravelly \Grav"el*ly\, a. Abounding with gravel; consisting of gravel; as, a gravelly soil. [1913 Webster]WordNet (r) 3.0 (2006):
gravelly adj 1: abounding in small stones; "landed at a shingly little beach" [syn: gravelly, pebbly, shingly] 2: unpleasantly harsh or grating in sound; "a gravelly voice" [syn: grating, gravelly, rasping, raspy, rough, scratchy]