lip

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lip

 [lip]
1. the upper or lower fleshy margin of the mouth.
2. any liplike part; called also labium.
double lip redundancy of the submucous tissue and mucous membrane of the lip on either side of the median line.
glenoid lip a ring of fibrocartilage joined to the rim of the glenoid cavity.
Hapsburg lip a thick, overdeveloped lower lip that often accompanies Hapsburg jaw.

LIP

Acronym for lymphocytic interstitial pneumonia or lymphoid interstitial pneumonia. See: lymphocytic interstitial pneumonia.

lip

(lip), [TA]
1. One of the two muscular folds with an outer membrane having a stratified squamous cell epithelial surface layer that bound the mouth anteriorly.
See also: labium, labrum.
2. Any liplike structure bounding a cavity or groove.
See also: labium, labrum.
Synonym(s): labium (1) [TA]
[A.S. lippa]

lip

(lĭp)
n.
1. Anatomy
a. Either of two fleshy structures that surround the opening of the mouth in humans and other mammals.
b. In humans, the smooth brownish to reddish border of the lip.
2. A structure or part that encircles or bounds an orifice, as:
a. Anatomy A labium.
b. The margin of flesh around a wound.
c. Either of the margins of the aperture of a gastropod shell.
d. A rim, as of a vessel, bell, or crater.

lip′less adj.

lip

(lip) [TA]
1. One of the two muscular folds that encircle the mouth anteriorly; each has an outer mucosa with a stratified squamous epithelial surface layer.
2. Any liplike structure bounding a cavity or groove.
Synonym(s): labium (1) [TA] .
[A.S. lippa]

lip

  1. (of an embryonic BLASTOPORE) the rim of the blastopore.
  2. (of a flower perianth) a group of perianth segments united to a greater or lesser extent, to form a distinct grouping thus divided from the rest of the perianth.
  3. (of vertebrates) one of two fleshy parts (upper and lower) surrounding the mouth.

lip

(lip) [TA]
1. One of two muscular folds with outer membrane having a stratified squamous cell epithelial surface layer around mouth.
2. Any liplike structure bounding a cavity or groove.
[A.S. lippa]