| 释义 |
coun·ter·selection
\“+\ noun
Etymology: counter- + selection
: selection opposed in its effects to natural selection: as
a. : preservation of the unfit : dysgenic selection (as forced on man by social customs)
b. : selection in plant or animal breeding against a quality undesirable from the point of view of the breeder though likely to be retained in a state of nature
< counterselection against low milk production in cattle > |