sesqui-
(Latin: one and a half; normally used as a prefix; from Latin, semis “half” + que “and”)
In chemistry, three atoms or equivalents of the [specified] element or radical are combined with two of another, as in iron sesquioxide, Fe 2O3. Also defined as the proportion of two (of one radical or element) to three (of another).
sesquiquintal
sesquiquintile
In astrology, having a zodiacal distance of about 108 degrees.
sesquiseptimal
Of the ratio of 8 to 7, or 1 1/7 to 1.
sesquisextal
Of the ratio of 7 to 6, or 1 1/6 to 1.
sesquitertia
In music, a perfect fourth.
sesquitertial
sesquitertian
Of the ratio of 4 to 3.
