D defs.my
Entry 1 sense Webster, 1913

Sesquialteral

· Ses·qui·al·ter·al · IPA /sɛskwɪˈaltərəl/
01 a. Once and a half times as great as another; having the ratio of one and a half to one.
  1. 1.
    Once and a half times as great as another; having the ratio of one and a half to one.
Phrases & compounds
Sesquialteral ratio — the ratio of one and a half to one; thus, 9 and 6 are in a sesquialteral ratio.