triplet

trip·let

noun \ˈtrip-lət\

Definition of TRIPLET

1

a : a combination, set, or group of three b : an atom or molecule with an even number of electrons that have a net magnetic moment c : codon

2

a : one of three children or offspring born at one birth b triplets pl : a group of three offspring born at one birth

3

: a combination of three lenses