† oligosporeanadj. and n. [ < scientific Latin Oligosporea, name of a division ( < oligo-comb. form + ancient Greek σπόροςsporen. + scientific Latin -ea, neuter plural of -eus: see -eoussuffix) + -ansuffix] ZoologyObsoleterare(a) adj. of or relating to the (former) division Oligosporea, comprising parasitic sporozoans whose oocysts produce a small number of sporozoites;(b) n. a sporozoan of the former division Oligosporea.Apparently only attested in dictionaries or glossaries.
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1890 Cent. Dict.Oligosporean, a. of or pertaining to the Oligosporea; n. a member of the Oligosporea.