The picture was enriched with attention cueing when the speech organs had one of following features: (1) different shapes of lips when producing bilabials
fricatives, labiodental-fricatives, or stops; (2) nasalization; (3) voiced sounds; and (4) the tongue in dental, alveolar, postalveolar, palatal, velar, or uvular positions.
insufficient') has two output forms, 'im'-(before bilabials
, as in 'impossible', 'immodest'), and 'in'-elsewhere ('inarticulate', 'involuntary', etc.
Thus, sounds can be divided into bilabials
, labiodentals, dentals, alveolars, palatals, mediopalatals, and velars.
Excessive biting reflex causes strong pressure on the nipples, difficulty in latching on, lack of self-stimulation in the oral cavity and, consequently, no chewing reflex, no manual babbling and no sensory patterns of bilabials
[p] [b] [m].
Tongue palate contact during bilabials
in normal speech.
The data above for Samoan reveal that specifically bilabials
p and m are preferred in initial position, by a greater than 2-to-1 margin, but labial-dentals f and v have no such preference.
The constriction can be formed by the lips, in case of bilabials
/p,b/; the tongue tip for alveolars /t,d/; and tongue dorsum when producing velars /k,g/.
If the articulatory velocity is the primary physiological factor for the voice onset difference, we would expect that the VOT would be shorter for apical alveolar stops than for either bilabials
or velars, which is not the general finding.
Both "v" and "f" are letters/sounds made by the lips, thus called (interchangeable) bilabials
Old Iranian bilabials
are characteristically retained in the initial position and softened postvocalically.
unvoiced, plosive and fricative bilabials
, together with liquids and
Characteristic is the interplay of bilabials
in the Ode on Melancholy, with its 'globed peonies,' 'can burst Joy's grape against his palate fine,' its 'aching Pleasure nigh, Turning to poison while the bee-mouth sips,' and its entire first stanza .