The uniform used for judo practice and competition, based on traditional Japanese clothing.

(obsolete) infertile; barren; unprofitable; unproductive

The acorn woodpecker, Melanerpes formicivorus, a woodpecker of southwestern North America, noted for its habit of inserting acorns in holes which it drills in trees.

(roller derby) The act of grabbing a teammate's hips in order to propel oneself forward.