keffekil

== English == === Alternative forms === kiefekil, keffekill === Etymology === From Turkish [Term?], composed of Kefe (“Caffa, a city in Crimea”) + kil (“clay”). The material was imported from that region of Crimea. Alternatively, according to Webster (1913), from Persian کف (kaf, “foam”) + گل (gel, “clay”). Note that Turkish kil is from Persian گل (gel). === Noun === keffekil (uncountable) (mineralogy) A kind of clay; meerschaum. ==== Derived terms ==== keffekilite === References === === Further reading === “kiefekil”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.