Definition of spawns:
(v) :
(transitive) To produce or deposit (eggs) in water.
(v) :
(transitive) To generate, bring into being, especially non-mammalian beings in very large numbers.
(v) :
(transitive) To bring forth in general.
(v) :
(transitive) To induce (aquatic organisms) to spawn.
(v) :
(transitive) To plant with fungal spawn.
(v) :
(intransitive) To deposit (numerous) eggs in water.