plural noun

: an order of green algae (class Chlorophyceae) originally including all multinucleate members of the class capable of vegetative division but now usually restricted to those that are apparently derived from the Siphonales and are nonseptate when young (as in the families Valoniaceae and Dasycladaceae)

Word History


New Latin, from Siphonocladus, type genus (from siphon- + Greek klados branch, sprout) + -ales

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Dictionary Entries Near Siphonocladales

Cite this Entry

“Siphonocladales.” Dictionary, Merriam-Webster, Accessed 21 Apr. 2024.

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