noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The ability of certain endogenous chemicals (notably cholecystokinin and neuropeptide Y) to counter the effects of exogenous analgesics (such as morphine) or endogenous pain-inhibiting neurotransmitters and modulators. uncountable

Etymology

From anti- + analgesia.

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