labiallyadv.

1669 W. Holder Elem. Speech 90 The Series of the Vowels..to which may be added u and ου, because of their general use, as being Labially affected more subtlely than the rest.

1797 H. T. Colebrooke in tr. J. Tarkapañcānana Digest Hindu Law I. p. xxii Sometimes pronounced gutturally, sometimes labially.

1861 Proc. Amer. Philos. Soc. 1859–61 7 132 No idea can be technically said to be expressed by man labially, or dentally, or gutturally, or nasally.

1966 Anthropol. Linguistics 8 34 The roundness of labially attracted vowels.

1999 Handbk. Internat. Phonetic Assoc. (2003) 17 It is for such labially rounded velarization that the superscript [^w] is most appropriate.

1859 Dental Reg. West 13 137 On molars, he left the space v shaped, wider lingually than labially, so that the food would be pressed toward the cavity of the mouth.

1908 G. V. Black Wk. Operative Dentistry I. 241 The broad cutting edge of the central incisor is that which most frequently pushes the root of the deciduous tooth labially.

1971 Nature 30 July 311/1 At the incisor sockets the alveolar margin seems to be preserved lingually but is broken labially.

2016 K. P. Hall & C. A. Klene in Atlas Oral & Maxillofacial Surg. x. 87/1 The index finger of the nondominant hand is placed labially, and the thumb palatally/lingually, firmly holding the alveolar process.