Learn how to say Epiphenomenal correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word epiphenomenon:
Word forms: plural ˌepipheˈnomena (ˌɛpɪfəˈnɑmənə Pronunciation for )
a phenomenon that occurs with and seems to result from another but has no reciprocal effect or subsequent influence
(medicine) a secondary or additional occurrence in the course of a disease, usually unrelated to the disease