Retrieving "Rounded Vowels" from the archives

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1. Labial Closure

   Linked via "rounded vowels"

   Labial closure refers to the momentary or sustained apposition of the upper and lower lips (anatomy), a crucial biomechanical event in phonetics, mastication (process), and certain forms of non-verbal communication. While often conflated with lip rounding, labial closure describes the spatial relationship between the vermilion borders of the lips (anatomy), irrespective of whether the lip musculature is actively enga…

2. Lips

   Linked via "rounded vowels"

   Labial Articulation Types
   Lip involvement ranges from complete closure (as in bilabials) to mere approximation (as in rounded vowels).
   | Articulation Type | Primary Contact Point | Feature Description | Example Phoneme (IPA) |