noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A cell surface receptor that binds a signaling molecule in addition to a primary receptor in order to facilitate ligand recognition and initiate a biological process, such as entry of a pathogen into a host cell

Etymology

From co- + receptor.

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