thal·​lo·​phyte ˈtha-lə-ˌfīt How to pronounce thallophyte (audio)
: any of a group of plants or plantlike organisms (such as algae and fungi) that lack differentiated stems, leaves, and roots and that were formerly classified as a primary division (Thallophyta) of the plant kingdom
thallophytic adjective

Word History


ultimately from Greek thallos + phyton plant — more at phyto-

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of thallophyte was in 1854

Dictionary Entries Near thallophyte

Cite this Entry

“Thallophyte.” Dictionary, Merriam-Webster, Accessed 15 Jun. 2024.

More from Merriam-Webster on thallophyte

Love words? Need even more definitions?

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