definition of
triplet

[1] #1 triplet n. [three, 3, III, trio, threesome, tierce, leash, troika, triad, trine, trinity, ternary, ternion, tercet, terzetto, trey, deuce-ace] the cardinal number that is the sum of one and one and one. wn

[2] #2 triplet n. one of three offspring born at the same time from the same pregnancy. wn

[3] #3 triplet n. [trio, triad, triple] a set of three similar things considered as a unit. wn