Standard Lemma guide

interleukin

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

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  • CMU ARPABET: IH2 N T ER0 L UW1 K IH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Any of a group of cytokine proteins important in the regulation of lymphocyte function.

Definition source: English Wiktionary via Wiktextract

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

any of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune system

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: lymphokine

History

Etymology

From inter- + leuko- + -in; *inter-: from Latin inter- (“between, amid”), a form of prepositional inter (“between”). *leuko: from Ancient Greek λευκός (leukós, “white”) *-in: from French -ine, from Latin -īna, feminine of -īnus "of" or "belonging to"

Across languages

Translations

2 source translations are retained for this English entry.

  • Chinese: 白細胞介素 /白细胞介素 (báixìbāo-jièsù) — protein
  • Finnish: interleukiini — protein
Real reading context

interleukin in complete knowledge articles