a. 1. Exhausted; worn out; having lost energy or motive force. [ 1913 Webster ]
Now thou seest me Spent, overpowered, despairing of success. Addison. [ 1913 Webster ]
Heaps of spent arrows fall and strew the ground. Dryden. [ 1913 Webster ]
2. (Zool.) Exhausted of spawn or sperm; -- said especially of fishes. [ 1913 Webster ]
Spent ball, a ball shot from a firearm, which reaches an object without having sufficient force to penetrate it. [ 1913 Webster ]