Definify.com
Webster 1913 Edition
Triplet
1.
A collection or combination of three of a kind; three united.
2.
(Poetry)
Three verses rhyming together.
3.
(Mus.)
A group of three notes sung or played in the tree of two.
4.
pl.
Three children or offspring born at one birth.
Webster 1828 Edition
Triplet
TRIP'LET
,Noun.
1.
In poetry, three verses rhyming together.2.
In music, three notes sung or played in the time of two.