transcription, транскрипция: [ ˈäp-sə-nən ]
noun
Etymology: Latin opsonare to buy provisions, cater (from Greek opsōnein ) + English -in (I) — more at oligopsony
Date: 1903
: any of various proteins (as antibodies or complement) that bind to foreign particles and cells (as bacteria) making them more susceptible to the action of phagocytes