heater

Noun

Synonyms: warmer fastball smoke hummer bullet

WordNet 3.0

Noun (2)

device that heats water or supplies warmth to a roomSynonyms: warmer
(baseball) a pitch thrown with maximum velocity“he swung late on the fastball”“he showed batters nothing but smoke”Synonyms: fastball smoke hummer bullet

Webster's Dictionary (GCIDE)

Heater \Heat"er\ (h[=e]t"[~e]r), n.

1.One who, or that which, heats. [1913 Webster]

2.Any contrivance or implement, as a furnace, stove, or other heated body or vessel, etc., used to impart heat to something, or to contain something to be heated. [1913 Webster]

3.A pistol or other carryable firearm; as, gunmen with their heaters bulging in their pockets. [slang] [PJC]

Feed heater. See under Feed. [1913 Webster]