Sesquitertian
Pronunciation : Ses`qui*ter"tian, Ses`qui*ter"tian*al
Part of Speech : a.
Etymology : [Sesqui- + L. tertianus belonging to the third. Cf. Tertian.] (Math.)
Definition : Defn: Having the ratio of one and one third to one (as 4 : 3).
Source : Webster's Unabridged Dictionary, 1913