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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.
3. Botany One of the two divisions of a bilabiate corolla or calyx, as in the snapdragon, or the modified median petal of an orchid flower.
4. The tip of a pouring spout, as on a pitcher.
5. Slang Insolent talk.
tr.v. lipped, lip·ping, lips
a. To touch the lips to.
b. To kiss.
2. To utter.
3. To lap or splash against.
4. Sports To hit a golf ball so that it touches the edge of (the hole) without dropping in.

[Middle English, from Old English lippa; see leb- in Indo-European roots.]

lip′less adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.lipless - without a lip or lipslipless - without a lip or lips    
lipped - having a lip or lips; "a lipped bowl"; "a virgin purest lipped"- John Keats
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in ?
References in classic literature ?
There was a mouth under the eyes, the lipless brim of which quivered and panted, and dropped saliva.
He had a large, almost lipless, mouth, extraordinary lank arms, long thin feet, and bow-legs, and stood with his heavy face thrust forward staring at us.
When a man is not adequately appreciated or comfortably placed in his own country, his thoughts naturally turn towards foreign climes; and David's imagination circled round and round the utmost limits of his geographical knowledge, in search of a country where a young gentleman of pasty visage, lipless mouth, and stumpy hair, would be likely to be received with the hospitable enthusiasm which he had a right to expect.
But in this matter of the whale, be the front of thy face to me as the palm of this hand --a lipless, unfeatured blank.
Famed lure designer Cotton Cordell is credited with making the first rattling lipless lure, the Cordell Hot Spot.
Below: Lipless and lipped models that get the job done.
Unlike Coach Ferrell, whose lipless simian mouth maintained a gentle grimness--his expressivity hampered apparently by a permanent plug of dip--Doug talked to us.
He was just a few yards from my position now, and I peeked out and he saw me and our eyes locked and, by god, if he didn't grin that lipless grin of his at me.
It's just that they're rather irritating after a while, those two--the bearded old rascal, arriving on foot from his native Transylvania, the hermit of the Impasse Ronsin, and the other, the lipless chess professor, Saint Touch-Me-Not, who would, without a word, a priori dismiss the next two generations of aspiring sculptors and painters.
His graceful sculptures of faceless, lipless women represent the feminine voices that remain silent and unheard in a male dominated world.
Zack had papery skin; his mouth was disconcertingly small and lipless. All his flesh had been bequeathed to Kwame, who was shiny and bloated, a merry satyr.