Standard Lemma guide

inoculum

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • General-American: /ɪˈnɑːkjələm/

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: inoculate

Antonyms: none provided

2

noun

Meaning 2

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

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: inoculant

Antonyms: none provided

Broader terms: substance

History

Etymology

Learned borrowing from Latin inoculum.

Across languages

Translations

1 source translations are retained for this English entry.

  • Bulgarian: калем (kalem) — material used in an inoculation