01 a. Twice and a half as great (as another thing); having the ratio of two and a half to one.
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1.
Twice and a half as great (as another thing); having the ratio of two and a half to one.
Phrases & compounds
Sesquiduplicate ratio —
the ratio of two and a half to one, or one in which the greater term contains the lesser twice and a half, as that of 50 to 20.