Definition of diplostemonous
: having the stamens in two whorls each of which has the same number as the petals and usually an inner stamen opposite each petal and an outer one opposite each sepal — compare obdiplostemonous
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Origin and Etymology of diplostemonous
probably from (assumed) New Latin diplostemonus, from New Latin dipl- + (assumed) New Latin -stemonus -stemonous
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