coiling coi·ling UK/ˈkɔɪlɪŋ/ US/ˈkɔɪˌlɪŋ/ uncommon adjective 1. in the shape of a coil Synonymshelicalspiralspiralingvolutevolutedwhorledturbinate Similarcoiled WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.