In biology, inoculum (pl.: inocula) refers to the source material used for inoculation. Inoculum may refer to:

• In medicine, material that is the source of the inoculation in a vaccine
• In microbiology, propagules: cells, tissue, or viruses that are used to inoculate a new culture
• Microbial inoculant, the beneficial introduction of microbes to improve plant health
• A method of propagation of fungal plant disease transmission
• Fermentation starter, in food production

Look up inoculum in Wiktionary, the free dictionary.

See also:

• Fear Inoculum, a 2019 album by American rock band Tool

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