Definition of: heteronym

(het′ər·ə·nim′) noun
1. A word spelled like another, but having a different sound and meaning, as bass (a male voice) and bass (a fish).
2. Another name for the same thing; especially, one of two precisely equivalent terms in different languages: “Water” is a heteronym of the French word “eau.” Compare HOMONYM. [<HETER(O)- + Gk. onyma, var. of onoma name; on analogy with synonym]