semivowel

IPA: sɛmaɪvˈaʊʌɫ

(phonetics) A sound in speech which has some qualities of a consonant and some qualities of a vowel.
A letter which represents a semivowel sound, such as w or y in English.

Examples of "semivowel" in Sentences

I mean may be either a vowel, a semivowel, or a mute.
A semivowel that which with such impact has an audible sound, as S and R.
However, I notice that the initial semivowel of the triliteral *wd` is uncertain.
And sometimes the speaker pronounces ‘yi’ with a discernible initial semivowel sound.
You overlooked what I already clearly wrote: "avoidance of word-initial semivowel /j/."
And, Iūnō is the *Latin* name; Uni is the Etruscan which, lo and behold, avoids the word-initial semivowel /j/.
The YA-/A- alternation in Minoan is merely a reflection of the phonotactically motivated avoidance of word-initial semivowel /j/.
But continuing with the third possibility of preaspiration… on the basis of this single example, there are a number of possible explanations for the distribution, for example after vowels and semivowel.
I'm not a native speaker and I don't have a dictionary to hand so there's a good chance I'm mistaken, but is the last sound of 'acceuil' and 'seuil' and 'deuil' a kind of a semivowel that has its own IPA representation?