a. [f. L. butyr-um + -OUS, corresp. to F. butyreux.] Of the quality or nature of butter; butyraceous, buttery.
1669. Boyle, Contn. New Exp., II. (1682), 117. To separate the Butyrous from the Caseous part.
1689. G. Harvey, Curing Dis. by Expect., vi. 39.
1774. A. Hunter, Georgic. Ess. (1803), III. 257. The cream was of a thick butyrous consistence.
Hence Butyrousness, buttery quality.
1662. H. Stubbe, Ind. Nectar, iii. 42. You may easily perceive in a rich nut … an extraordinary butyrousness.
