POLYGYNANDRY By N., Pam M.S. - April 7, 2013 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 SCRAMBLE COMPETITION CRYPTIC FEMALE CHOICE PARENTAL INVESTMENT THEORY MALE-MALE COMPETITION SNEAK MATING FEMALE CHOICE GOOD GENES HYPOTHESIS ANIMAL MAGNETISM OPERATIONAL SEX RATIO VANDENBERGH EFFECT Cite this page: N., Pam M.S., "POLYGYNANDRY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/polygynandry/ (accessed January 19, 2021).