(Slavic mythology) A female water spirit that leads handsome men to their deaths underwater.

(mineralogy) A monoclinic mineral containing aluminum, hydrogen, iron, oxygen, phosphorus, and vanadium.

(humanities) An academic discipline that includes the study of literatures written in the Russian language, Russian linguistics, and Russian sociolinguistics.

A purported state of hyperactivity caused by excessive consumption of sugar, or other simple carbohydrates.

(archaic) simple past tense and past participle of rush

plural of rust fungus

(historical) Of or pertaining to Great Russia. / (historical) Of or pertaining to Great Russians, the language of Great Russia, as opposed to Little Russia, White Russia, etc.

(historical) A person from, or an inhabitant of, Great Russia.

(obsolete) The Russian language, especially when (possibly erroneously) considered to be mutually intelligible with the Ukrainian (Little Russian) and Belarusian (White Russian) languages.

(of a dinner service) Having courses already cut and handed it out to individual guests.