an official designation for a semi-urban settlement (or a former town) in the Soviet Union, Poland (formerly), Bulgaria (formerly) and in 10 post-Soviet republics—Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan

Any of numerous clypeastroid sea urchins (sand dollars) of the genera Melitta, Rotula and Encope, with one or more perforations resembling keyholes.

Any sea urchin of the genus Rotula having a round, flat shell; a type of sand dollar.

Any of the genus Clypeaster of echinoderms. See Clypeaster

(uncountable) A process where older areas of a city are redeveloped, including slum clearance, replacement of outdated buildings and infrastructure.

plural of urinary tract infection

(medicine) An infection that affects part of the urinary tract.

Relating to the urachus.

(slang) A strong desire to form intense emotional connections, stereotypically associated with lesbians.

plural of urachus