sesquiduple, a.
(ˈsɛskwɪˌdjuːp(ə)l)
[f. sesqui- + duple, to express the meaning ‘two and a half’ (on a false analogy), after sesquialteral.]
Involving a ratio of 2½ to 1. So sesquiˈduplicate a.
| 1775 Ash, Sesquiduplicate, belonging to the ratio of five to two. 1842 Brande Dict. Sci., etc. s.v. Sesqui, Sesquiduplicate..sometimes occurs in modern treatises. 1850 Ogilvie, Sesquiduple, is sometimes used in the same manner as sesquiduplicate. |