Spawn \Spawn\, n. [[root]170. See {Spawn}, v. t.] 1. The ova, or eggs, of fishes, oysters, and other aquatic animals. 2. Any product or offspring; -- used contemptuously. 3. (Hort.) The buds or branches produced from underground stems. 4. (Bot.) The white fibrous matter forming the matrix from which fungi. {Spawn eater} (Zo["o]l.), a small American cyprinoid fish ({Notropis Hudsonius}) allied to the dace.