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

lact(o)- Also lacti-.

Milk; lactic acid or lactose.

[Latin lac, lact-, milk.]

Lactation refers to the secretion of milk by the mammary glands; something lactiferous forms or conveys milk or milky fluids; a hormone or other substance that is lactogenic induces the secretion of milk; a person who is a lacto-ovo-vegetarian (Latin ovum, egg) eats vegetables, eggs, and dairy products but does not eat meat.

A sugar characteristically present in milk is lactose or milk sugar. Fermentation of it by a lactobacillus produces lactic acid. Lactoprotein is the general name for the protein component of milk, constituents of which include lactoferrin, lactoglobulin, and lactalbumin.

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