Definitions
1.nounA round vessel or cask, of greater length than breadth, and bulging in the middle, made of staves bound with hoops, and having flat ends or heads. Sometimes applied to a similar cylindrical container made of metal, usually called a drum."a cracker barrel"
2.nounThe quantity which constitutes a full barrel: the volume or weight this represents varies by local law and custom.
3.nounA solid drum, or a hollow cylinder or case"the barrel of a windlass; the barrel of a watch, within which the spring is coiled."
4.nounA metallic tube, as of a gun, from which a projectile is discharged.
5.nounA tube.
6.nounThe hollow basal part of a feather.
7.nounThe part of a clarinet which connects the mouthpiece and upper joint, and looks rather like a barrel (1).
8.nounA wave that breaks with a hollow compartment.
9.nounA waste receptacle."Throw it into the trash barrel."
10.nounThe ribs and belly of a horse or pony.
11.nounA jar.
12.nounAny of the dark-staining regions in the somatosensory cortex of rodents, etc., where somatosensory inputs from the contralateral side of the body come in from the thalamus.
13.nounA statistic derived from launch angle and exit velocity of a ball hit in play.