Webster
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Webster’s Revised Unabridged Dictionary · 1913

Fermentation theory

Fer′men·ta′tion the′o·ry. (Med.) The theory which likens the course of certain diseases (esp. infectious diseases) to the process of fermentation, and attributes them to the organized ferments in the body. It does not differ materially from the accepted germ theory (which see).

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty.