plural noun

: a family of fungi (order Peronosporales) having sporangia usually borne successively and singly at the tips of branching sporangiophores which differ little if any from assimilative hyphae see phytophthora, pythium

Word History


New Latin, from Pythium, type genus + -aceae

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Dictionary Entries Near Pythiaceae

Cite this Entry

“Pythiaceae.” Dictionary, Merriam-Webster, Accessed 21 Sep. 2023.

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