rheoliadur

== Welsh == === Etymology === From rheoli (“to control, manage”) +‎ -iadur. === Pronunciation === (North Wales) IPA(key): /ˌr̥ɛ.ɔlˈjadɨ̞r/ (South Wales) IPA(key): /ˌr̥ɛ.ɔlˈjaːdɪr/, /ˌr̥ɛ.ɔlˈjadɪr/ === Noun === rheoliadur m (plural rheoliaduron) (anatomy, medicine) pacemaker === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “rheoliadur”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “rheoliadur”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies