adj. & n.
adj. 1 (usu. foll. by on) depending, conditional, or subordinate. 2 unable to do without (esp. a drug). 3 maintained at another's cost. 4 Math. (of a variable) having a value determined by that of another variable. 5 Gram. (of a clause, phrase, or word) subordinate to a sentence or word.
n. US var. of DEPENDANT. dependently adv.
[ ME, earlier -ant = DEPENDANT ]