POLYGYNANDRY By N., Sam M.S. - 21 noun. a mating system wherein males mate with many females and females mate with many males. POLYGYNANDRY: "Polygynandry is common in some bird species." Related Psychology Terms A Comparison of Maternal and Paternal Filicide PARENTAL INVESTMENT THEORY VANDENBERGH EFFECT SCRAMBLE COMPETITION CRYPTIC FEMALE CHOICE HOMOSEXUALITY (ETIOLOGY AND THERAPY) SEXUAL DEVIATIONS (GENERAL) MATING BEHAVIOR BROOD PARASITISM OPERATIONAL SEX RATIO Cite this page: N., Sam M.S., "POLYGYNANDRY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/polygynandry/ (accessed July 3, 2022).