With Respect To or derived from butter
- relating to or producing butyric acid
- with respect to, or derived from, butter.
1826, from stem of Latin butyrum "butter" (see butter (n.)) + -ic.
(a.) with respect to, or produced by, butter.
Thus in cows' butter, tributyrin, C 3 H 5 (O C 4 H 7 0) 3, and the analogous glycerides of other readily volatile acids closely resembling butyric acid, are present in small quantity; the production of these acids on saponification and distillation with dilute sulphuric acid is utilized as a test of a purity of butter as sold.