| frenulum of the lip | Frenulum of upper lip, frenulum labii inferioris et superioris; frenulum of the lower lip; frenulum of the upper lip; the folds of mucous membrane extending from the gingiva to the midline of the lower and upper lips, respectively. Synonym: frenulum labii inferioris, frenulum labii superioris. (05 Mar 2000) |
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| lip | 1. One of the two fleshy folds which surround the orifice of the mouth in man and many other animals. In man the lips are organs of speech essential to certain articulations. Hence, by a figure they denote the mouth, or all the organs of speech, and sometimes speech itself. "Thine own lips testify against thee." (Jeb xv. 6) 2. An edge of an opening; a thin projecting part of anything; a kind of short open spout; as, the lip of a vessel. 3. The sharp cutting edge on the end of an auger. 4. <botany> One of the two opposite divisions of a labiate corolla. (b) The odd and peculiar petal in the Orchis family. See Orchidaceous. 5. <zoology> One of the edges of the aperture of a univalve shell. Lip bit, a pod auger. See Auger. Lip comfort, comfort that is given with words only. Lip comforter, one who comforts with words only. Lip labour, unfelt or insincere speech; hypocrisy. Lip reading, the catching of the words or meaning of one speaking by watching the motion of his lips without hearing his voice. Lip salve, a salve for sore lips. Lip service, expression by the lips of obedience and devotion without the performance of acts suitable to such sentiments. Lip wisdom, wise talk without practice, or unsupported by experience. Lip work. Talk. Kissing. Lip make a lip, to drop the under lip in sullenness or contempt. To shoot out the lip, to show contempt by protruding the lip. Origin: OE. Lippe, AS. Lippa; akin to D. Lip, G. Lippe, lefze, OHG. Lefs, Dan. Laebe, Sw. Lapp, L. Labium, labrum. Cf. Labial. Source: Websters Dictionary (01 Mar 1998) |
| lip and leg ulceration | An infectious disease of sheep characterised by crusted ulcers on the skin of the face, feet, and external genitalia; thought to be caused by the orf virus. Synonym: lip and leg ulceration. (05 Mar 2000) |
| lip bumper | <dentistry> A lip bumper is used to push the molars on your lower jaw back to create more space for other teeth. The lip bumper consists of an arch wire which is attached to a moulded piece of plastic. You mount the arch wire in the buccal tubes on your lower jaw, and plastic piece rests against your lips. When you eat or talk, you push the plastic piece back which pushes on your molars. That pushes your molars back. (08 Jan 1998) |
| lip pits | Malformations of the lip seen in unilateral or bilateral depressions or fistulae. May be hereditary or associated with cleft lip and/or palate. (05 Mar 2000) |
| lip reflex | A pouting movement of the lips provoked in young infants by tapping near the angle of the mouth. (05 Mar 2000) |
| lip sulcus | A furrow between the developing lip and gum. Synonym: labiodental sulcus, lip sulcus, primary labial groove. (05 Mar 2000) |
| lower lip | The muscular fold bounding the opening of the mouth inferiorly. Synonym: labium inferius oris. (05 Mar 2000) |
| low lip line | The lowest position of the lower lip during the act of smiling or voluntary retraction, the lowest position of the upper lip at rest. (05 Mar 2000) |