noun, often attributive \ˈmath\

: the opening through which food passes into the body : the part of the face that includes the lips and the opening behind them

: an opening in something

: the place where a river enters the ocean

plural mouths \ˈmathz also ˈmaz, ˈmaths; in synecdochic compounds like blabbermouths ths more frequently\

Full Definition of MOUTH

a :  the natural opening through which food passes into the body of an animal and which in vertebrates is typically bounded externally by the lips and internally by the pharynx and encloses the tongue, gums, and teeth
b :  grimace <made a mouth>
c :  an individual requiring food <had too many mouths to feed>
a :  voice, speech <finally gave mouth to her feelings>
b :  mouthpiece 3a
c (1) :  a tendency to excessive talk
(2) :  saucy or disrespectful language :  impudence
:  something that resembles a mouth especially in affording entrance or exit: as
a :  the place where a stream enters a larger body of water
b :  the surface opening of an underground cavity
c :  the opening of a container
d :  an opening in the side of an organ flue pipe
mouth·like \ˈmath-ˌlīk\ adjective
down in the mouth

Examples of MOUTH

  1. He kissed her on the mouth.
  2. He threatened to punch me in the mouth.
  3. She stood there with her mouth agape.
  4. I burned the roof of my mouth.
  5. They told him to keep his mouth closed when chewing and not to talk with his mouth full.
  6. He wiped his mouth with a napkin after eating.
  7. She regretted saying it as soon as the words were out of her mouth.
  8. The smell of the food made my mouth water.
  9. The candy melts in your mouth.
  10. The medication is taken by mouth.

Origin of MOUTH

Middle English, from Old English mūth; akin to Old High German mund mouth and perhaps to Latin mentum chin
First Known Use: before 12th century

Related to MOUTH

chops, gob [chiefly British], kisser [slang], mug, piehole [slang], trap [slang], yap [slang]

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral

Rhymes with MOUTH


verb \ˈmath also ˈmath\

: to say or repeat (something) without really meaning it or understanding it

: to form (words) with your lips without speaking

Full Definition of MOUTH

transitive verb
a :  speak, pronounce
b :  to utter bombastically :  declaim
c :  to repeat without comprehension or sincerity <always mouthing platitudes>
d :  to form soundlessly with the lips <the librarian mouthed the word “quiet”>
e :  to utter indistinctly :  mumble <mouthed his words>
:  to take into the mouth; especially :  eat
intransitive verb
a :  to talk pompously :  rant —often used with off
b :  to talk insolently or impudently —usually used with off
:  to move the mouth especially so as to make faces
mouth·er noun

Examples of MOUTH

  1. She was just mouthing the usual meaningless platitudes about the need for reform.
  2. silently mouthing the words to a song

First Known Use of MOUTH

14th century

Related to MOUTH


noun \ˈmath\   (Medical Dictionary)
plural mouths \ˈmathz\

Medical Definition of MOUTH

: the natural opening through which food passes into the animal body and which in vertebrates is typically bounded externally by the lips and internally by the pharynx and encloses the tongue, gums, and teeth


noun    (Concise Encyclopedia)

Orifice through which food and air enter the body. It opens to the outside at the lips and empties into the throat at the rear and is bounded by the lips, cheeks, hard and soft palates, and glottis. Its chief structures are the teeth (see tooth), tongue, and palate. It is the site of chewing and speech formation. The mouth is lined by mucous membranes containing small glands that, along with the salivary glands, keep it moist and clear of food and other debris.

Variants of MOUTH

mouth or oral cavity or buccal cavity


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