(bl′mər) noun
1. A costume of loose trousers under a short skirt; also, a woman so dressed.
2. plural Loose, wide knickerbockers gathered at the knees: worn by women.
3. plural Canvas guards attached to turrets of battleships and enclosing the barrels of turret guns to keep out dampness. [after Mrs. Amelia Bloomer, U.S. feminist reformer, 1818–94, who first proposed it]

(bl′mər) noun Slang
A bad mistake; an error. [? <Australian slang a bloom(ing) er(ror)]