What does redhead mean in cooking?

redhead means: Saltwater fish of the wrasse family. California Sheesphead. Its meat has a white, tender and lean texture. (in Cooking Dictionary)

What else does redhead mean?

• Red haired person. (in Merlin Dictionary)
• A North American duck (Aythya americana), The male has a grey back, wings and breast, while the female is redheaded and has a black breast. (in Merlin Dictionary)