/kwin tooh"peuhl, -tyooh"-, -tup"euhl, kwin"too peuhl, -tyoo-/ , adj., n., v., quintupled, quintupling .
adj.
1. fivefold; consisting of five parts.
2. five times as great or as much.
3. Music. having five beats to a measure.
n.
4. a number, amount, etc., five times as great as another.
v.t. , v.i.
5. to make or become five times as great.
[ 1560-70; quintuplus, deriv. of quintus fifth (see QUINT 1 ), on the model of duplus DUPLE, quadruplus QUADRUPLE ]