'Spawner' definitions:

Definition of 'spawner'

From: WordNet
noun
A female fish at spawning time

Definition of 'Spawner'

From: GCIDE
  • Spawner \Spawn"er\, n.
  • 1. (Zool.) A mature female fish. [1913 Webster]
  • The barbel, for the preservation or their seed, both the spawner and the milter, cover their spawn with sand. --Walton. [1913 Webster]
  • 2. Whatever produces spawn of any kind. [1913 Webster]