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Pronunciation varies by accent · noun
(botany) A filament of cells that forms following the germination of the spores of mosses and liverworts.
Use protonema when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Protonema means (botany) A filament of cells that forms following the germination of the spores of mosses and liverworts.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use protonema where its definition matches the intended context.
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