: a genus (the type of the family Protosiphonaceae) of unicellular multinucleate freshwater green algae consisting of a single form (P. botryoides) that is broadly tubular or more or less balloon-shaped and grows often confusingly mingled with Botrydium attached to mud by a single rarely branching rhizoid

Word History


New Latin, from prot- + Greek siphōn siphon, tube, pipe

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Dictionary Entries Near Protosiphon

Cite this Entry

“Protosiphon.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

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