Population Demographics for St Joseph, Minnesota in 2016 and 2015.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  spawn(verb) the mass of eggs deposited by fish or amphibians or molluscs. 2  engender, breed, spawn(verb) call forth. 3  spawn(verb) lay spawn. The salmon swims upstream to spawn.
When the female salmon arrive the spawning process begins. It is the female that initiates spawning by digging a shallow nest for her eggs in the gravel. She does this by turning slightly on one side and fanning her tail. This disturbs the gravel and much of it is pushed downstream by the current.