diaphone: Meaning and Definition of

di•a•phone

1. a foghorn producing a low-pitched, penetrating signal of two tones.
2. The broad
1. a phoneme in one dialect corresponding to a similar but phonetically different phoneme in a related dialect.
2. a group of sounds comprising all the phonetically different dialectal variants of a given phoneme in a language:The broada and flat a of “half ” are members of a single diaphone.