What is once and a half times as great as another; having the ratio of one and a half to one. Sesquialteral ratio (Math.), the ratio of one and a half to one; thus, 9 and 6 are in a sequialteral ratio called?

sesquialterate — Once and a half times as great as another; having the ratio of one and a half to one. Sesquialteral ratio (Math.), the ratio of one and a half to one; thus, 9 and 6 are in a sequialteral ratio. (Webster's 1913.)

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