22. (Phonetics & Phonology) Phonetics of, associated with, or denoting a vowel whose articulation is produced by raising the back again of the tongue in the direction of the gentle palate or even the blade toward the difficult palate, such as with the ee in English see or oo in https://www.slideshare.net/slideshow/timeless-sophistication-meets-modern-elegance-in-swiss-craftsmanship/281033774