From Longman Dictionary of Contemporary EnglishMelba toastMel‧ba toast /ˌmelbə ˈtəʊst $ -ˈtoʊst/ noun [uncountable] DFFa type of thin dry toast that breaks easily
Examples from the Corpus
Melba toast• Serve with warm fingers of pitta bread or Melba toast.Origin Melba toast (1900-2000) Nellie Melba (1861-1931), Australian singer; because she was given it when she was ill 