mon·a·can·thid I. \|mänə|kan(t)thə̇d\adjective alsomon·a·can·thine\-thə̇n, -nˌthīn\ Etymology:monacanthid from New Latin Monacanthidae; monacanthine from New Latin Monacanthus, genus of fishes + English -ine : of or relating to the Monacanthidae II. noun alsomonacanthine\“\ (-s) : a monacanthid fish