velopharyngeal insufficiency

synonym: velopharyngeal incompetence
https://doi.org/10.1351/goldbook.11361

Inability to achieve closure of the velopharyngeal sphincter (closure of the muscle of the soft palate) during speech, owing to muscular dysfunction, cleft palate, or other disorders.

Note: This insufficiency often causes speech problems by allowing air to escape through the nose instead of the mouth.
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 819 [Terms] [Paper]
Citation: 'velopharyngeal insufficiency' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.11361 RIS BibTex EndNote
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