sɪˈlekʃən n. 1
the act or an
instance of selecting; the
state of
being selected. 2 a selected
person or
thing. 3 things
from which a
choice may be
made. 4 Biol. the process in which
environmental and genetic influences
determine which types of
organism thrive better
than others, regarded as a
factor in
evolution. øøselectional adj. selectionally adv. [L selectio (as SELECT)]