Alternative form of isagogic

A melody. / A song, or short musical composition. / (informal) The act of tuning or maintenance. / The state or condition of being correctly tuned. / (obsolete) Temper; frame of mind.

(organic chemistry) A compound having the formula C26H20N2, used chiefly as a metal complexing agent or chelator.

(mineralogy) A hydrated cerium/calcium phosphate.