n.
1 Cricket etc. a member of the fielding side who bowls or is bowling.
2 a player at bowls.
2.
n. (in full bowler hat) a man's hard felt hat with a round dome-shaped crown.
Phrases and idioms:
bowler-hat (-hatted, -hatting) sl. retire (a person) from the army etc. (he's been bowler-hatted).
Etymology: Bowler, a hatter, who designed it in 1850
Useful english dictionary. 2012.