sperm

Short definition from Wiktionary

Noun

1. 1
   The reproductive cell or gamete of the male; a spermatozoon.
2. 2
   Semen; the generative substance of male animals.
3. 3
   Sperm oil; whale oil from a sperm whale; spermaceti.

Verb

1. 1
   To ejaculate.
2. 2
   To ejaculate on or into.