natural killer cell

English dictionary entry

Meanings

noun
  1. Any cell that expresses cell surface receptors that deliver signals to either activate or inhibit a response as part of the innate immune system.

Word forms

natural killer cell natural killer cells

Etymology

The description "natural killer" refers to the fact that they do not require activation to kill cells missing MHC class I "self" markers.

Synonyms

large granular lymphocyte NK NK cell

Related words

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