Word.ws English Dictionary

thalli

thalli is the plural of thallus.

Meaning of thallus

Noun

thallus (plural thalluses or thalli)

  1. An undifferentiated plant body, such as in algae.
    • As it flows it takes the forms of sappy leaves or vines, making heaps of pulpy sprays a foot or more in depth, and resembling, as you look down on them, the laciniated, lobed, and imbricated thalluses of some lichens; […]1854 August 9, Henry D[avid] Thoreau, “Spring”, in Walden; or, Life in the Woods, Boston, Mass.: Ticknor and Fields, →OCLC
  2. Any plant body lacking vascular tissue.

Questions about thalli

What is thalli the plural of?
Thalli is the plural of thallus.

Words near thalli in the dictionary

  1. thallate
  2. thallates
  3. thallation
  4. thallations
  5. thallene
  6. thalli
  7. thallian
  8. thallic
  9. thalliferous
  10. thalliform
  11. thalline

Source and license

Adapted from Wiktionary: thalli (page history and authors); thallus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “thalli.” Word.ws, https://word.ws/thalli. Based on Wiktionary, CC BY-SA 4.0.