The Collaborative International Dictionary of English v.0.48:
Sealskin \Seal"skin`\, n. The skin of a seal; the pelt of a seal prepared for use, esp. of the fur seal; also, a garment made of this material. [Webster 1913 Suppl.]WordNet (r) 3.0 (2006):
sealskin n 1: the pelt or fur (especially the underfur) of a seal; "a coat of seal" [syn: seal, sealskin] 2: a garment (as a jacket or coat or robe) made of sealskin