Definition from Wiktionary, the free dictionary
steelhead (plural steelheads)
- The anadromous form of the rainbow trout, Oncorhynchus mykiss
2007 October 9, Henry Fountain, “Downside to Breeding Fish in Captivity Shows Up Early”, New York Times:
- The researchers compared three groups of steelheads: fish born of two wild parents and reared in the wild; first-generation captive fish (born of two wild parents and reared in captivity); and second-generation captive fish (with one captive-bred parent).
- The ruddy duck.
- (fish): steelhead salmon