Noun | 1. | Phasmidae - stick insects arthropod family - any of the arthropods order Phasmatodea, order Phasmida, Phasmatodea, Phasmida - in some classifications considered a suborder of Orthoptera: stick insects; leaf insects stick insect, walkingstick, walking stick - any of various mostly tropical insects having long twiglike bodies genus Diapheromera - a genus of Phasmidae |