present participle of know the difference between one's ass and a hole in the ground

(chemistry) A salt of ferrocyanic acid; a ferrocyanide.

(historical) A town in Armenia, the site of the Battle of Manzikert where the Byzantine Empire was decisively defeated by Seljuk Turks; modern Malazgirt in Turkey

(organic chemistry) Describing any organic compound containing a carbon to erbium bond.