monophonic Syllabification: (mon·o·phon·ic)Pronunciation: /ˌmänəˈfänik/Definition of monophonic adjective 1 Music consisting of a single musical line, without accompaniment:the style of monophonic singing known as Gregorian chant 2(of sound reproduction) using only one channel of transmission. Compare with stereophonic.Derivatives monophonicallyPronunciation: /-ik(ə)lē/ adverb monophonyPronunciation: /məˈnäfənē/ noun Origin: early 19th century: from mono- 'one' + Greek phonē 'sound' + -icmonophonic in other Oxford dictionaries Definition of monophonic in the British & World English dictionary