phas·​mid ˈfaz-məd How to pronounce phasmid (audio)
: any of an order (Phasmatodea synonym Phasmida) of large cylindrical or sometimes flattened chiefly tropical insects (such as a walking stick) that have long legs, strictly phytophagous habits, and incomplete metamorphosis and that include forms resembling leaves or twigs
phasmid adjective

Examples of phasmid in a Sentence

Recent Examples on the Web Some lost species, including the phasmid, have subsequently been rediscovered on surrounding islets. John Pickrell, Science | AAAS, 5 June 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'phasmid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin Phasmida, group name, from Phasma, type genus, from Greek, apparition, from phainein to show — more at fancy

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of phasmid was in 1864

Dictionary Entries Near phasmid

Cite this Entry

“Phasmid.” Dictionary, Merriam-Webster, Accessed 23 Feb. 2024.

Medical Definition


phas·​mid ˈfas-mid How to pronounce phasmid (audio)
: either of the paired lateral postanal organs characteristic of most parasitic nematodes and usually regarded as chemoreceptors see phasmidia

More from Merriam-Webster on phasmid

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!