protonema
noun
pro·to·ne·ma
ˌprō-tə-ˈnē-mə
plural protonemata
ˌprō-tə-ˈnē-mə-tə
-ˈne-
: the primary usually filamentous thalloid stage of the gametophyte in mosses and in some liverworts comparable to the prothallus in ferns
Cite this Entry
“Protonema.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protonema. Accessed 28 Mar. 2025.
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