nociceptive no·ci·cep·tive UK/ˌnəʊ.sɪˈsɛp.tɪv/ US/ˌnoʊ.səˈsɛp.tɪv/ uncommon adjective 1. caused by or in response to pain “a nociceptive spinal reflex” Similarsensitive WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.