| 单词 | fad |
| 释义 | Word Frequency fad(fæd) noun informal 1. an intense but short-lived fashion; craze 2. a personal idiosyncrasy or whim Derived forms faddish (ˈfaddish) adjective faddishness (ˈfaddishness) noun faddism (ˈfaddism) noun faddist (ˈfaddist) noun Word origin C19: of uncertain originWord Frequency FADnoun biochemistry flavin adenine dinucleotide: an ester of riboflavin with ADP that acts as the prosthetic group for many flavoproteins See also FMN |
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