Definition of: bachelor

(bach′ə·lər, bach′lər) noun
1. An unmarried man.
2. One who has taken his first university or college degree.
3. A young knight serving under another's banner: also bach′e·lor-at-arms′.
4. A fresh-water fish, the crappie.
5. A young male fur seal kept from the breeding grounds by the older males: also called holluschick. [<OF bacheler <Med. L baccalaris; origin and meaning uncertain]
—bach′e·lor·hood′ noun
—bach′e·lor·ship′ noun