- Oregon, Beaver State, OR - a state in northwestern United States on the Pacific
--1 is a kind of American state
--1 is a part of
--1 has parts:United States, United States of America, America, US, U.S., USA, U.S.A. Crater Lake National Park; Bend; Eugene; Klamath Falls; Medford; Portland; Salem, capital of Oregon; Klamath, Klamath River; Snake, Snake River; Willamette, Willamette River - operating room, OR, operating theater, operating theatre, surgery - a room in a hospital equipped for the performance of surgical operations; "great care is taken to keep the operating rooms aseptic"
--2 is a kind of hospital room