OXFORD DICTIONARY
prong, n. & v.
--n. each of two or more projecting pointed parts at the end of a fork etc.
--v.tr.
1 pierce or stab with a fork.
2 turn up (soil) with a fork.
prong-buck (or -horn or -horned antelope) a N. American deerlike ruminant, Antilocapra americana, the male of which has horns with forward-pointing prongs. three-pronged attack an attack on three separate points at once.
pronged adj. (also in comb.).
ME (also prang), perh. rel. to MLG prange pinching instrument
THESAURUS
prong
V, affluent, bayou, billabong, branch, confluent, confluent stream, crotch, crutch, delta, dendritic drainage pattern, effluent, fan, feeder, fork, furcula, furculum, groin, inguen, offshoot, ramification, stem, tributary, trident, wishbone
ROGET THESAURUS
prong
bisection
N
bisection, bipartition, dichotomy, subdichotomy, halving, dimidiation, bifurcation, forking, branching, ramification, divarication, fork,
prong, fold, half, moiety, bisected, cloven, cleft, bipartite, biconjugate, bicuspid, bifid, bifurcous, bifurcate, bifurcated, distichous, dichotomous, furcular, semi-, demi-, hemi.