(mineralogy) A triclinic-pinacoidal mineral containing barium, calcium, oxygen, and silicon.

A structured high-level programming language which was designed by IBM to be both easy to learn and easy to read.

(organic chemistry) An alkaloid, obtained from the bark of cinchona trees, that is used as an antimalarial agent.

(countable) A body of words, and set of methods of combining them (called a grammar), understood by a community and used as a form of communication.