D defs.my
Entry 1 sense Webster, 1913

Betacism

· Be·ta·cism · IPA /ˈbiːtəsɪzəm/
01 n. Excessive or extended use of the b sound in speech, due to conversion of other sounds into it, as through inability to distinguish them fro…
  1. 1.
    Excessive or extended use of the b sound in speech, due to conversion of other sounds into it, as through inability to distinguish them from b, or because of difficulty in pronouncing them.