Definition of mouthpiece in US English:



  • 1A thing designed to be put in or against the mouth.

    ‘the snorkel's mouthpiece’
    • ‘To use a dry powder inhaler, it is important to close the mouth tightly around the mouthpiece of the inhaler and to inhale rapidly.’
    • ‘Couriel and colleagues asked children to use a snorkel mouthpiece, and make no mention of distraction techniques.’
    • ‘At the other end of the tube is a mouthpiece or mask which you breathe in and out of.’
    • ‘The nicotine inhaler system uses a cartridge and mouthpiece that offer vaporized nicotine that is absorbed across the oropharyngeal mucosa.’
    • ‘Your jaws get achy and when you take the mouthpiece out your teeth no longer fit in your mouth, and you can hear every breath you take and it sounds like you're gasping for air, which you are, because water is splashing into your tube.’
    • ‘If you don't have a spacer tube, place the mouthpiece of the inhaler unit about 2 inches in front of your open mouth.’
    • ‘I was surprised to find that my snorkel had melted almost down to the mouthpiece, leaving a stump that would have allowed me to dive in two centimetres of water.’
    • ‘When he surfaces he pushes up his mask, spits out his mouthpiece and shouts happily to those left on board: ‘There is gold down there!’’
    • ‘To use a dry powder inhaler, close your mouth tightly around the mouthpiece and inhale very fast.’
    • ‘Dry powder inhalers require you to place your lips on the mouthpiece and inhale more rapidly than you would with a traditional metered-dose inhaler.’
    • ‘Remove the mouthpiece cover and place the spacer over the mouthpiece at the end of the inhaler.’
    • ‘MDIs are designed with a mouthpiece that maximizes deposition of the medication in the small airways when used properly.’
    • ‘You'll likely use a metered-dose inhaler - a hand-held device with a mouthpiece - to take inhaled medications.’
    • ‘It is not a matter of law whether a fresh mouthpiece should be used for each breath test.’
    • ‘The driver blows into a disposable mouthpiece for each test.’
    • ‘They feel more comfortable using earphones and mouthpieces.’
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    1. 1.1 A part of a musical instrument placed between or against the lips.
      • ‘Instead of the normal defiant chatter and occasional squawks of disembodied sax mouthpieces, the room was in a complete uproar.’
      • ‘I frequently managed to get my mouthpiece stuck in my trumpet.’
      • ‘A narrow, mainly cylindrical bore with a sharp cup mouthpiece, such as on the Baroque natural trumpet, helps high notes.’
      • ‘Saxes are quirky in that they have the mouthpiece of a woodwind, but the body (conical rather than cylindrical) of a brass instrument.’
      • ‘I breathed across the mouthpiece and my fingers danced along the keys, making my flute sing a shrill ladder of notes, then back down.’
      • ‘As Pepper tells the tale, he hasn't touched his horn in six months, the mouthpiece has rotted away, and he has to patch it together with sticky tape.’
      • ‘It is a wind instrument characterized by a tube-like shape, a whistle mouthpiece, and eight finger holes.’
      • ‘Remember how his mouth clung to the mouthpiece and his hips swayed in time to the music he created?’
      • ‘Each horn has a fairly shallow cup mouthpiece and, like the Western bugle, is capable of producing different tones.’
      • ‘He is actually more interested in trying out the new mouthpiece on his tuba than about the money.’
      • ‘Next to it sat a hybrid instrument consisting of a shiny new tuba and a trumpet fused together at their mouthpieces.’
      • ‘And while it may not sound hygienic, the band uses only antique mouthpieces, for added realism.’
      • ‘Our halftime performance isn't the best we've ever played it, due to the cold weather freezing the brass' mouthpieces and the woodwinds' reeds.’
    2. 1.2 The part of a telephone for speaking into.
      • ‘Those of you who have watched old black-and-white movies depicting long-distance conversations may remember the callers shouting into the mouthpieces in order for the other party to repeat what was said.’
      • ‘Steven tries shouting into the mouthpiece, but after a moment just gives up and stares at me, pouting.’
      • ‘A weird noise then, as if he had his hand covering the mouthpiece of the phone.’
      • ‘He didn't bother to cover the mouthpiece as he shouted for my mom; my ear was still ringing as she got the phone.’
      • ‘The girl held the button down for a few seconds before cautiously letting it go and speaking into the mouthpiece.’
      • ‘Quite nonchalantly, Em responded in kind by loudly ramming the phone's mouthpiece on the wall several times.’
      • ‘I gaped at my wall, and then shouted angrily into the mouthpiece, ‘Izzy, if this is you, I'm calling the police.’’
      • ‘He put his hand over the mouthpiece of the telephone, and turned to me and said, ‘Excuse me, Sweetheart, but what's your name?’’
      • ‘Alexis covered the mouthpiece of the phone and rolled her eyes at him.’
      • ‘I quickly picked up my pace and began following her across the lot as she shouted instructions into her mouthpiece and scribbled a signature on any piece of paper shoved in front of her as she stormed past.’
      • ‘She picked up the receiver, with her thin fingers wrapping one and a half times around the skinny bridge between earpiece and mouthpiece.’
      • ‘It features a sleek design with a gentle-glowing mouthpiece light to tell would-be botherers you're on the phone.’
      • ‘He turned to me and covered the mouthpiece of the phone.’
      • ‘I put my hand over the mouthpiece and shouted to Tony, ‘He's at the hospital!’’
    3. 1.3 The part of a tobacco pipe placed between the lips.
      • ‘The shape of the mouthpiece plays a key role in the pipe smoking experience.’
      • ‘Hand the pipe with the mouthpiece facing the next smoker, even when the bowl isn't hot.’
    4. 1.4 A mouthguard.
      • ‘I haven't worn a mouthpiece since I was in junior high school because I couldn't talk with it in.’
      • ‘They put in their mouthpieces and rammed their gloves together and made intimidating faces as best they could without laughing.’
      • ‘I bite hard on my regulator mouthpiece with the shock, and my face quickly goes numb.’
      • ‘Make sure your protective equipment (pads, helmets, mouthpieces, etc.) fits properly.’
      • ‘Kariya also began wearing a mouthpiece and a safer helmet, and he began a routine of exercises to strengthen his neck, which he still does today.’
      • ‘All players were encouraged to wear a mouthpiece, but compliance was variable.’
      • ‘An all-purpose foam helmet and a mouthpiece shall be worn by the soccer goalie for protective purposes.’
      • ‘In the middle of the fight Sanchez got very winded, and asked his corner to replace his double mouthpiece with a single.’
      • ‘Just last season he found a way - a shock-absorbing mouthpiece - to protect himself.’
      • ‘The punch knocked Mosley's mouthpiece out and it was the most telling blow of the round.’
      • ‘Molded to your child's teeth, the night guard is similar to the protective mouthpieces worn by football players.’
      • ‘Your protective vest should be serviceable and your mouthpiece and gloves should be in good condition.’
      • ‘On two of those occasions, Griffin knocked Reid's mouthpiece out.’
  • 2derogatory A person or organization that speaks on behalf of another person or organization.

    ‘they become nothing more than a mouthpiece for the company’
    • ‘I think our compatriots in the press are mouthpieces for governments.’
    • ‘You are not there as a mere mouthpiece.’
    • ‘Isn't it time the designated mouthpieces of the political-financial complex wiped that look of incredulity off their faces?’
    • ‘International law provides for the breaking of patents ‘in an emergency,’ and this is what Canadian Government mouthpieces have cited as the reasoning for their decision.’
    • ‘Unfortunately they are fettered and shackled, and have become mouthpieces and lackeys of whoever wants to promote a message.’
    • ‘What if the public figures out we are mouthpieces for the Labour Party?’
    • ‘As soon as he saw me, he caught me by my collar and scoffed at me: ‘When did you become the mouthpiece of capitalists, young man?’’
    • ‘I was never going to betray my country or become a propaganda mouthpiece for anyone.’
    • ‘Harlan is no mere mouthpiece, however; she has a tale of her own to tell.’
    • ‘And history has examples of how universities, by becoming mere mouthpieces of government, have aided and abetted dictatorships.’
    • ‘Some news outlets that were once government mouthpieces are now more independent, especially those in the northern border states.’
    • ‘The characters could easily remain unfeeling mouthpieces spouting ideological positions, but Dobbin brings out the humanity of each one, making all of them in some way sympathetic.’
    • ‘But again like Lloyd-Webber, Strauss was already Vienna's mouthpiece and much could therefore be forgiven.’
    • ‘This is a situation of gross exploitation of workers by businesses and their political mouthpieces.’
    • ‘Though they frequently support articulated Department of Defence positions, they are not mere mouthpieces.’
    • ‘The BBC is an independent public service broadcaster, not a government mouthpiece.’
    • ‘For a start, we can expose the hypocrisy of Murdoch and his media mouthpieces.’
    • ‘Their mindset makes them natural (often unwitting) mouthpieces for powerful vested interests bent on suppressing the ill effects of profit-motivated endeavours.’
    • ‘The first case is quite Orwellian in that the media, especially the state-owned media, serves as governments' obedient mouthpieces.’
    spokesperson, spokesman, spokeswoman, frontman, agent, representative, propagandist, organ, voice
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    1. 2.1North American informal A lawyer.
      • ‘The developers have their mouthpiece lawyers in the city council meeting every morning while the rest of us are making love or rhyming words… how you gonna fight that?’
      • ‘Their Australian mouthpiece refers to their copyright control of that VeriChip device and their PLD systems.’
      • ‘The corporate-controlled media excludes any genuinely critical voices, narrowing what passes for public debate to squabbles between well-paid mouthpieces for various factions of the American ruling elite.’
      • ‘It's very clear that those six stories differ from stories where a person speaks through a mouthpiece, like a lawyer or a family member.’
      • ‘The difficulty is that first of all you never buy a mouthpiece, otherwise the judges couldn't do what they do impartially.’
      • ‘These are some of the preposterous ‘solutions’ and responses to the terror attack offered by corporate mouthpieces.’