gwybed ffwng

== Welsh == === Pronunciation === IPA(key): /ˌɡwəbɛd ˈfʊŋ/ === Noun === gwybed ffwng m (singulative gwybedyn ffwng) fungus gnats === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “gwybed ffwng”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies