tonfedd

Welsh

Etymology

ton +‎ -fedd

Pronunciation

IPA^(key): /ˈtɔnvɛð/

• Rhymes: -ɔnvɛð

Noun

tonfedd f (plural tonfeddi)

1. wavelength
   • 2020 May 12, Dr Glyn Morris, “Chwalu'r chwedlau am coronafeirws”, in BBC Cymru Fyw‎^[1]:

     Ond os ofynnwch (sic) i ffisegydd, bydden nhw'n dweud bod tonfedd y lliw coch bob amser yn bresennol, ac felly mae'r datganiad yn wir.

     But if you ask a physicist, they would say that the wavelength of the color red is always present, and so the statement is true.

Mutation

Welsh mutation
radical	soft	nasal	aspirate
tonfedd	donfedd	nhonfedd	thonfedd
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.