Labial sounds
The lips are not only anatomic features of note, they are organs of speech essential to certain articulations. A sound requiring the participation of one or both lips is a labial (labium in Latin means lip) sound or, simply, a labial. All labials are consonants. There are bilabial sounds such as “p” which involve both lips and labiodental sounds such as “v” which involve the upper teeth and lower lip.
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- Labile
Unstable. For example, labile blood pressure is blood pressure that abnormally increases and decreases frequently.
- Labile diabetes
A type of diabetes when a person’s blood glucose (sugar) level often swings quickly from high to low and from low to high. Also called “unstable diabetes” or “brittle diabetes.”
- Labiodental sound
A sound that requires the involvement of the teeth and lips, such as “v,” which involves the upper teeth and lower lip.
- Labium
The singular form of labia.
- Labor
the latent phase and the active phase. In the latent phase, contractions become progressively more coordinated and the cervix dilates to 4 cm (approximately 1.5 inches). The latent phase averages about 8 hours for a nullipara (a woman having her first baby) and 5 hours for a multipara (a woman having a subsequent baby). In […]