In the center of the room, a circular glass table displayed a single white orchid.
Walking through the spiral hallway into the almost pitch black, circular room, the senses become immediately disoriented.
This is pretty close to a circular firing squad as Boehner scrambles to find 218 votes to avert fiscal Armaggeddon.
late 14c., from Anglo-French circuler, Old French circuler "circular" (14c., Modern French circulaire), from Latin circularis, from circulus (see circle (n.)). The metaphoric circular firing squad is attested by 1990.
1550s, "circular figure," from circular (adj.). Meaning "a notice circulated" is from 1818.