labialism

Century Dictionary and Cyclopedia

1. n. A tendency to labial pronunciation—that is, to change articulate sounds to labials or to labiodentals; labialization.

Wiktionary

1. n. A form of stammering characterized by confusion in the use of the labial consonants.

GNU Webster's 1913

1. n. The quality of being labial; ; conversion into a labial, as of a sound which is different in another language.