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.
References in classic literature ?
The switch hovered in the air -- the peril was des- perate --
He is a des- perate slaveholder, who will shock the humanity of his non-slaveholding neighbors with the cries of his lacerated slave.
A number of people now, like my brother, had their faces eastward, and there were some des- perate souls even going back towards London to get food.