nocturnal, omnivorous American marsupial mammal, c. 1600, from Powhatan (Algonquian) opassum, "equivalent to a proto-Algonquian term meaning 'white dog'" [Bright]. The colloquial form is possum (q.v.).
opinionate
opinionated
opioid
opisthography
opium
opossum
opponent
opportune
opportunism
opportunist
opportunistic
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