(n.) A coalition or union of two vowel sounds pronounced in one syllable; as, ou in out, oi in noise; -- called a proper diphthong.
(n.) A vowel digraph; a union of two vowels in the same syllable, only one of them being sounded; as, ai in rain, eo in people; -- called an improper diphthong.
(v. t.) To form or pronounce as a diphthong; diphthongize.
Example Sentences:
(1) The clustering in the present song, however, may also be due to a tendency for a mid vowel to be realized as a higher-beginning diphthong, which is characteristic of the North-Estonian coastal dialect area where the singers come from.
(2) Those confusions occurring in visual diphthong recognition tended to shift toward the stressed vowel element of the diphthong or to a vowel produced in a manner similar to the stressed element.
(3) This paper describes a successful experiment of creating several different diphthongs by judicious choice of the phase angles of a flat-spectrum waveform.
(4) Pronunciation of the diphthong La... La... La... causes upward and forward projection of the prosthesis.
(5) The effects of reverberation on the perception of vowels and diphthongs were evaluated using 10 subjects with moderate sensorineural hearing losses.
(6) The effects of noise and reverberation on the identification of monophthongs and diphthongs were evaluated for ten subjects with moderate sensorineural hearing losses.
(7) Electromyography records contraction of the mylo-hyoid during pronunciation of these diphthongs.
(8) In addition, a feature related to overall area of maximum lip opening and two features unique to diphthong perception were tentatively identified.
(9) This study investigated vowel and diphthong lipreading performance from 0 degree and 90 degree angles of observation.
(10) It appears that modifications in relative timing may be due to adjustments in the jaw cycle as a result of the compound nature of jaw movement for diphthongs as compared to vowels, with further modifications due to the effect of stress on these compound movements.
(11) Four vowels, [i], [a], [e], [u], and one diphthong [ou], produced by two male and two female tracheoesophageal speakers were analyzed by the LPC autocorrelation method.
(12) Six- to seven-month-old infants were tested on their ability to discriminate among three speech sounds which differed on the basis of formant-transition duration, a major cue to distinctions among stop, semivowel and diphthong classes.
(13) Additionally, issues related to talker normalization, coarticulation effects, segmentation, pitch, transposition, and diphthongization are discussed.
(14) For the diphthongs in both noise and reverberation, there was a tendency to judge a diphthong as the beginning monophthong.
(15) These models deal primarily with the problem of "target undershoot" associated with the coarticulation of vowels with consonants in natural speech and with the issue of "vowel-inherent spectral change" or diphthongization of English vowels.
(16) Although vowel confusions occurred in both test conditions, the number of vowels and diphthongs affected and the total number of errors made were significantly greater under the reverberant condition.
(17) Finally, the role of vowel-inherent dynamic properties, including duration and diphthongization, is briefly reviewed.
(18) The diphthong stimuli were significantly easier to identify than the vowel stimuli at both angles of observation.