Definitions
1.NounSmall fragments of rock, used for laying on the beds of roads and railways, and as ballast.
2.NounA type or grade of small rocks, differentiated by mineral type, size range, or other characteristics.
3.NounA particle from 2 to 64 mm in diameter, following the Wentworth scale.
4.NounKidney stones, or nephrolithiasis
5.NounA lameness in the foot of a horse, usually caused by an abscess.
6.NounInability to see at night; night blindness.
7.NounGravel cycling, a discipline in cycling different from road cycling, mountain biking or cyclocross, for a large part on gravel roads, typically with a dedicated gravel bike.
8.NounThe stimulant drug alpha-pyrrolidinopentiophenone.
9.VerbTo apply a layer of gravel to the surface of a road, etc.
10.VerbTo puzzle or annoy.
11.VerbTo run (as a ship) upon the gravel or beach; to run aground; to (cause to) be grounded in gravel or sand.
12.VerbTo hurt or lame (a horse) by gravel or similar material lodged between the shoe and foot.
13.VerbTo prostrate; to beat to the ground.