Of or relating to the Urdu language.

A mischievous child. / A street urchin, a child who lives, or spends most of their time, in the streets. / A sea urchin.

Any of many marine echinoderms, of the class Echinoidea, commonly found in shallow water, having a complex chewing structure named Aristotle's lantern.

(organic chemistry) One of the bases of RNA, pairing with adenine.

(urology) To pass urine from the body.

(historical medicine and alchemy) A glass vial used for examining or storing urine. / (obsolete) A chamber pot specially designed or considered as a device for urination.

Synonym of urinary

Pertaining to urine, its production, function, or excretion. / Of or relating to the organs involved in the formation and excretion of urine.

(archaic) A urinary device or fixture: a urinal.

(physiology) Liquid waste consisting of water, salts, and urea, which is made in the kidneys, stored in the bladder, then released through the urethra.