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Made thrice as much; threefold; tripled. Triplicate ratio (Math.), the ratio of the cubes of two quantities; thus, the triplicate ratio of a to b is a3: b3.

Triternate.

Expressed by the cube root; -- said especially of ratios. Subtriplicate ratio, the ratio of the cube root; thus, the subtriplicate ratio of a to b is cube roota to cube rootb, or cube roota/b.

o (Mus.), a large piano, usually harp-shaped, in which the wires or strings are generally triplicated, increasing the power, and all the mechanism is introduced in the most effective manner, regardless of the size of the instrument. -- Grand relief (Sculp.), alto relievo. -- Grand Seignior. See under Seignior. -- Gr…

Subduplicate of the triplicate; -- a term applied to ratios; thus, a and a' are in the sesquiplicate ratio of b and b', when a is to a' as the square root of the cube of b is to the square root of the cube of b', or a:a'::sq. rootb3:sq. rootb'3. The periodic times of the planets are in the sesquiplicate ratio of their…