: any of a family (Didelphidae) of small- to medium-sized American marsupials that usually have a pointed snout and nearly hairless scaly prehensile tail, are typically active at night, and are sometimes hunted for their fur or meat
especially: a common omnivorous largely nocturnal mammal (Didelphis virginiana) of North and Central America that is a skilled climber, that typically has a white face and grayish body and in the female a well-developed fur-lined pouch, and that when threatened may feign death by curling up the body and remaining motionless and unresponsive
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In areas of Everglades National Park, where the snakes started showing up in the 1980s, sightings of mammals such as marsh rabbits, raccoons, opossums, bobcats and deer have plummeted by 80% to 99%, depending on species.—Bill Kearney, Sun Sentinel, 11 June 2026 One post included security camera footage showing two coyotes hunting an opossum on the driveway of a house in the Barber Tract.—Ashley MacKin Solomon, San Diego Union-Tribune, 4 June 2026 Fleas are carried constantly into your yard by wildlife that passes through, such as skunks, raccoons, opossums, mice, and deer, says Benson.—Arricca Elin Sansone, Southern Living, 28 May 2026 The competition has been held every year since 2013 to help raise awareness of the invasive Burmese python, which has contributed to the decline of small mammals like opossums, bobcats and foxes.—Morgan Rynor, Miami Herald, 20 May 2026 See All Example Sentences for opossum
Word History
Etymology
earlier apossoun, opassom, borrowed from a Virginia Algonquian word of uncertain form, going back to Algonquian *wa·p- "white" + *-aʔθemw- "dog, small animal"
: a common marsupial mammal mostly of the eastern U.S. that usually is active at night, has a tail that can wrap around and grasp objects (as tree branches), and is an expert climber
Etymology
from apossoun, opassom, a word in an Algonquian language of Virginia meaning, literally, "white dog"