An inhabitant of any place called Columbia. / (dated or poetic) An American, a person from the United States of America. / A stamp from the Columbian Issue stamps.

plural of Columbian

(organic chemistry) An acid extracted from the columbo root as a bitter, yellow, amorphous substance.

plural of columbiad

(military, historical) A form of seacoast cannon; a long, chambered gun designed for launching shot or shells with heavy charges of powder, at high angles of elevation.

Aquilegia vulgaris.

plural of columbid

Any dove or pigeon in the family Columbidae.

(organic chemistry) A white, crystalline, bitter substance.

Alternative form of give someone Hail Columbia