| labio- | The lips. See: cheilo-. Origin: L. Labium, lip (05 Mar 2000) |
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| labiocervical | Relating to a lip and a neck; specifically, to the labial or buccal surface of the neck of a tooth. Origin: Labio-+ L. Cervix, neck (05 Mar 2000) |
| labiochorea | A chronic spasm of the lips, interfering with speech. Origin: Labio-+ G. Choreia, dance (05 Mar 2000) |
| labioclination | Inclination of position more toward the lips than is normal; said of a tooth. (05 Mar 2000) |
| labiodental | Relating to the lips and the teeth; denoting certain letters the sound of which is formed by both lips and teeth. Origin: Labio-+ L. Dens, tooth (05 Mar 2000) |
| labiodental sulcus | A furrow between the developing lip and gum. Synonym: labiodental sulcus, lip sulcus, primary labial groove. (05 Mar 2000) |
| labiogingival | Relating to the point of junction of the labial border and the gingival line on the distal or mesial surface of an incisor tooth. (05 Mar 2000) |
| labiogingival lamina | A band of ectodermal epithelial cells growing into the mesenchyme of the embryonic jaws between the developing lip and the growing gingival elevation; it later opens to form the labiogingival groove. (05 Mar 2000) |
| labioglossolaryngeal | Relating to the lips, tongue, and larynx; describing bulbar paralysis in which these parts are involved. Origin: Labio-+ G. Glossa, tongue, + larynx (05 Mar 2000) |
| labioglossopharyngeal | Relating to the lips, tongue, and pharynx; describing bulbar paralysis involving these parts. Origin: Labio-+ G. Glossa, tongue, + pharynx (05 Mar 2000) |
| labiograph | An instrument for recording the movements of the lips in speaking. Origin: Labio-+ G. Grapho, to record (05 Mar 2000) |
| labiolingual appliance | An orthodontic appliance that consists of a maxillary labial arch wire and a mandibular lingual arch wire. (05 Mar 2000) |
| labiolingual plane | A plane parallel to the labial and lingual surfaces of the teeth. (05 Mar 2000) |
| labiomental | Relating to the lower lip and the chin. Origin: Labio-+ L. Mentum, chin (05 Mar 2000) |
| labionasal | 1. Relating to the upper lip and the nose, or to both lips and the nose. 2. Denoting a letter which is both labial and nasal in the production of its sound. (05 Mar 2000) |