Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

sesqui-

One and one half.

[Latin semi-, a half, plus que, and.]

A sesquicentenary is the one hundred and fiftieth anniversary of a significant event; a sesquialtera (Latin alter, second) in music denotes a ratio of 3:2, as in an interval of a fifth. A sesquioxide is one in which oxygen is present in the ratio of three atoms to two of another element, as for example aluminium oxide, Al2O3; a sesquiterpene is a member of the terpene family of volatile unsaturated hydrocarbons found in essential oils that has one and a half times as many carbon atoms (15) as a terpene (10). A sesquipedalian word (Latin sesquipedalis, a foot and a half long) has many syllables; the adjective also describes somebody long-winded or who uses long words.

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