| 单词 | bitter principle |
| 释义 | bitter principle (once / 140707 pages) n WORD FAMILY bitter principle: bitter principles USAGE EXAMPLESIn the year 1821, several chemists isolated from coffee a bitter principle, of peculiar properties, which was named caffein. Widtsoe, John Andreas, Joseph Smith as Scientist—A Contrib...(2012) They were a favorite spring tonic, where all physicians and housewives prescribed "the bitter principle" in the spring time. Earle, Alice Morse, Old-Time Gardens—Newly Set Forth(2012) The bark and leaves have an intensely bitter principle, similar to quinine and equally efficacious. Parsons, Mary Elizabeth, The Wild Flowers of California: The...(2012) n any one of several hundred compounds having a bitter taste; not admitting of chemical classification Hyper chemical compound, compound (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight |
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