n. A person having red hair.n. A red-headed duck, the pochard, Fuligula or Æthyia ferina, a common bird of Europe, a variety of which bears the same name in America and is called more fully red-headed duck, red-headed raftduck, red-headed broadbill, also grayback, Washington canvasback, and American pochard.n. The red-headed woodpecker, Melanerpes erythrocephalus. See cut under Melanerpes.n. A tropical milkweed, Asclepias Curassavica, with umbels of bright-red flowers.