chrysomelid /ˌkɹaɪ.soʊˈmɛ.lɪd/adjective 1noun 1forms 3 adjective1 •Belonging or relating to the family Chrysomelidae.In all, 34 willow-associated chrysomelid species were encountered, of which eight were very abundant. — 2016 noun1 •Any leaf beetle of the family Chrysomelidae.There was a paucity of chrysomelids at Greek sites and a distinctively northern faunal composition at sites north of Poland. — 2016 formschrysomelids · more chrysomelid · most chrysomelid