Spent (spĕnt), a.

1. Exhausted; worn out; having lost energy or motive force.

Now thou seest meSpent, overpowered, despairing of success. Addison.

Heaps of spent arrows fall and strew the ground. Dryden.

2. (Zoöl.) Exhausted of spawn or sperm; -- said especially of fishes.

Spent ball, a ball shot from a firearm, which reaches an object without having sufficient force to penetrate it.

-- Webster's unabridged 1913