from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Pronounced or articulated with both lips, as the consonants b, p, m, and w.
  • adj. Relating to both lips.
  • n. A bilabial sound or consonant.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Articulated with both lips.
  • n. A speech sound articulated with both lips.

from the GNU version of the Collaborative International Dictionary of English

  • adj. produced using both lips; -- said of a consonant. .
  • n. a consonant that is articulated using both lips, as p or b or w.

from The Century Dictionary and Cyclopedia

  • Involving the two lips.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a consonant that is articulated using both lips; /p/ or /b/ or /w/
  • adj. of or relating to or being a speech sound that is articulated using both lips


Sorry, no etymologies found.


  • Yes, it's formed by closing both lips -- 'bilabial' -- rather than using tongue and teeth.

    Bukiet on Brooklyn Books

  • Point is, if the model is accurate it's like describing how sounds are articulated phonetically, how the/b/sound is a voiced bilabial plosive.

    Bukiet on Brooklyn Books

  • Perhaps the voiced bilabial plosive suggests the last and energetic verb (I know the withheld verbs create suspense).

    God’s Grandeur « Unknowing

  • Yes, it makes Sean Kingston's Beautiful Girls look like Sad-Eyed Lady of the Lowlands, but Mohombi isn't about furrowing brows, he's about fun with a capital bilabial fricative.

    Mohombi (No 845)

  • In Arabic, there is no "p" sound (voiceless bilabial plosive), so it is often replaced with a "b" sound (voiced bilabial plosive).

    House Votes Overwhelmingly To Condemn MoveOn; Large Majority Of Dems Votes "Aye"

  • Now, this is a matter of detail perhaps but worth noting since p has occasionally eroded to f in Etruscan, particularly next to tautosyllabic u, and this sort of lenition can only rationally happen with a bilabial phoneme, not a labiodental one.

    Archive 2009-05-01

  • As I've remarked before on my blog, Etruscan p consistently shows lenition to a bilabial fricative /ɸ/ whenever it neighbours the high rounded back vowel u.

    The etymology of Latin tofus 'tufa' isn't written in stone

  • If we only assess the problem from within the specialized bubble of the narrow Etruscan field, internal -u- before bilabial m can easily be explained away as a reduced form of original *-e-.

    Etruscan Artemis and the unexpected vowel change

  • Consider the Etruscan use of letter phi, coding for the aspirate bilabial stop, which tends to mark many Greek loans: Φerse 'Perseus' and Φuipa 'Phoibe'.

    The etymology of Latin tofus 'tufa' isn't written in stone

  • Many languages have bilabial fricatives such as Irish, Andalusian and Japanese.

    Archive 2009-05-01


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  • (ragdacious)

    November 27, 2008