Entry 1 sense Webster, 1913 Tubfish · Tub·fish · IPA 01 n. The sapphirine gurnard (Trigla hirundo). See Illust. under Gurnard. 1. The sapphirine gurnard (Trigla hirundo). See Illust. under Gurnard.(Zool.) [Prov. Eng.] See: Gurnard