1911 Encyclopædia Britannica/Arrenotokous, Arrenotoky

​ARRENOTOKOUS, ARRENOTOKY (from Gr. ἄρρην, male, and τόκος from τίκτειν, to beget), biological terms proposed by Leuckart and Eduard von Siebold to denote those parthenogenetic females which produce male young, while “thelytokous” and “thelytoky” would denote their producing female young.

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