het·er·oph·o·ny 
(hĕt′ə-rŏfə-nē)
(hĕt′ə-rŏfə-nē)n.
The simultaneous playing or singing of two or more versions of a melody.
het′er·o·phonic (-ər-ə-fŏnĭk) adj.
- homologation
- homologic
- homological
- homologically
- homologize
- homologous
- homolographic
- homolographic projection
- homologue
- homologue
- homology
- homolosine projection
- homolysis
- homolytic
- homomorphic
- homomorphism
- homomorphous
- Homo neanderthalensis
- homonym
- homonymic
- homonymous
- homonymously
- homonymy
- Homoousian
- homophile