Verb
dentilabialize (third-person singular simple present dentilabializes, present participle dentilabializing, simple past and past participle dentilabialized)
(phonetics) Of Middle Chinese initial consonants /p/, /pʰ/, /b/, and /m/: to develop into /f/, /fʰ/, /v/, and /ʋ/ (or further into /f/, /w/, etc).