Definitions for lacto-

This page provides all possible meanings and translations of the word lacto-

Random House Webster's College Dictionary


  1. a combining form meaning “milk” (lactometer) or “lactic acid” (lactobacillus).

    Category: Affix

    Ref: Also, lacti- ;esp. before a vowel, lact-.

Origin of lacto-:

< L lact-, s. of lac milk + -o -


  1. lacto-(Prefix)

    denoting a connection to milk.

  2. Origin: From lac.


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