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synoecy

noun syn·oe·cy \ sə̇ˈnēsē , ˈsiˌn- \
variants: or less commonly synoeky \-nēkē\

Definition of synoecy

plural -es
:synoecism:
a :commensalism in which the guests are indifferently tolerated by their hosts — compare symphily, synechthry
b :association between two species benefiting the one without harm to the other
c :monoecism

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Origin and Etymology of synoecy

Greek synoikia body of people living together, community, from synoikos dwelling together + -ia -y

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