Sirolimus

//sɪˈɹoʊ.lɪm.əs// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An immunosuppressive drug C₅₁H₇₉NO₁₃ that is a macrocyclic lactone obtained from a soil bacterium Streptomyces hygroscopicus and is taken orally especially to prevent rejection of transplanted organs. uncountable

Etymology

From [Term?] + (mac)rol(ide) + -imus (“immunosuppressant”).

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