The Collaborative International Dictionary of English v.0.48:
Cottonseed oil \Cottonseed oil\ A fixed, semidrying oil extracted from cottonseed. It is pale yellow when pure (sp. gr., .92-.93). and is extensively used in soap making, in cookery, and as an adulterant of other oils. [Webster 1913 Suppl.]WordNet (r) 3.0 (2006):
cottonseed oil n 1: edible oil pressed from cottonseeds