释义 |
des- des- (des), chemistry a prefix indicating absence of some component of the principal part of the name; largely replaced by "de-" (for example, deoxyribonucleic acid, dehydro-) but retained where "de-" could be taken for d- or d-, as part of "desmo-" (for example, desmosterol), and in such terms as desoxycortone.des- chemistry A prefix indicating absence of some component of the principal part of the name; largely replaced by de- (e.g., deoxyribonucleic acid, dehydro-). des- or desmo- prefix denoting a bond or chain. |