SINCE 1828
Pythiaceae
plural noun
Pyth·i·a·ce·ae
| \ ˌpithēˈāsēˌē\
Definition of Pythiaceae
: 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
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Merriam-Webster unabridged
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