polygynandrousadj.

1962 D. N. Majumdar Himalayan Polyandry 72 This form of marriage may, therefore better be known as ‘polygynandry’, and this union a polygynandrous family unit, instead of being known by the popularly used term ‘polyandrous’.

1984 Jrnl. Animal Ecol. 53 899 It is clear..that young females disperse from their natal territories and are not likely to be involved in polygynandrous associations with close relatives.

1986 M. V. Flinn & B. S. Low in D. I. Rubenstein & R. W. Wrangham Ecol. Aspects Social Evol. xi. 224 Among the Pahari, initially polyandrous unions later tend to become polygynandrous because groups of brothers usually try to acquire additional wives.

1999 Nature 6 May p. lx/3 This feature may have evolved from the birds' unusual polygynandrous mating system in which unrelated male coalitions defend multiple nest chambers.