inoculum

I1N1O1C3U1L1U1M3
US/ɪˈnɑːkjələm/

noun

The active material used in an inoculation; an inoculant (i.e., a material or a dose thereof).

UncommonScrabble 12

Meanings

nouninoculum (countable and uncountable, plural inoculums or inocula)

plural inoculums · plural inocula

  1. countableuncountableThe active material used in an inoculation; an inoculant (i.e., a material or a dose thereof).

    Observers noted that Chinese variolators in Vietnam exhibited one or two slight variations in their practice, however, one constant factor is that they all introduced inoculum into the nasal passages.

    2015, C. Michele Thompson, Vietnamese Traditional Medicine: A Social History, page 82

    Synonyms: inoculate

Synonyms & antonyms

nounThe active material used in an inoculation; an inoculant (i.e., a material or a dose thereof).

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More synonyms by meaning

nouna substance (a virus or toxin or immune serum) that is introduced into the body to produce or increase immunity to a particular disease

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Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latininoculum
  2. Latininoculum
  3. Englishinoculum

Learned borrowing from Latin inoculum.

Full word history & related roots →

Translations

Bulgarian калем
  • калем (kalem)material used in an inoculation
Cite this entry
APA

inoculum. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/inoculum

MLA

“inoculum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/inoculum. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “inoculum,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/inoculum.

Source: inoculum on Wiktionary, CC BY-SA 4.0.