Tri"ple , v. i. [imp. & p. p. Tripled (?);
p. pr. & vb. n.
Tripling (?).]
[Cf. F. tripler. See Triple, a.] To make threefold, or thrice as
much or as many; to treble; as, to
triple the tax on coffee.
Tri"ple (?), a. [L. triplus; tri- (see Tri-) + -plus, as in
duplus double: cf. F.
triple. See Double, and cf. Treble.]
1. Consisting of three united; multiplied by three; threefold; as, a triple knot; a triple tie.
By thy triple shape as thou
art seen.
Dryden. 2. Three
times repeated; treble. See
Treble.
3.
One of three; third. [Obs.]
Shak.
Triple crown, the crown, or tiara, of the
pope. See Tiara, 2. -- Triple-expansion steam engine, a compound steam engine in which the
same steam performs work in three
cylinders successively. -- Triple measure (Mus.), a measure of tree beats of which first only is accented. -- Triple ratio (Math.), a ratio which is equal to
3. -- Triple salt
(Chem.), a salt
containing three distinct
basic atoms as radicals; thus, microcosmic salt is a triple salt. -- Triple star
(Astron.), a system
of three stars in close proximity. -- Triple time (Mus.), that time in which
each measure is divided into three equal parts. -- Triple
valve, in an automatic air brake for
railroad cars, the valve under each car, by
means of which the brake is
controlled by a change of pressure in the air pipe
leading from the locomotive.
Hear it pronounced