arctiid moth arc·tiid·moth uncommon noun 1. stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars Synonymsarctiidarctiid moth Related words Broader terms moth Narrower terms tiger mothcinnabar Parts Arctiidae WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
