— deontological /dee on'tl oj"i keuhl/ , adj. — deontologist , n.
/dee'on tol"euh jee/ , n.
ethics, esp. that branch dealing with duty, moral obligation, and right action.
[ 1820-30; deont- that which is binding (s. of déon, neut. prp. of deîn to bind), equiv. to de- bind + -ont- prp. suffix + -o- + -LOGY ]