Perforin

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A cytolytic protein found in natural killer cells. countable, uncountable

Etymology

From perforate + -in, alluding to its action on the cell membrane.

Related phrases

natural killer cell

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.