|IPA character description||square below|
|Unicode||U + 033B|
|HTML (dec.)||& # 827;|
A laminal ( latin lamina , leaf ' ) is an after articulation organ designated speech sound . In the International Phonetic Alphabet , laminal sounds are indicated by a square (◌̻, Unicode COMBINING SQUARE BELOW U + 033B). Laminal sounds are formed when the tongue is placed against the articulation points of the upper lip, upper teeth, perineum and the prepalatal arch of the palate or forms a constriction with them.
A distinction is made between lamino- dental , lamino- alveolar , lamino- postalveolar and lamino- palatal sounds:
- Lamino-dental: the tongue is on the back of the upper teeth and the tip of the tongue is just below the edge of the lower teeth. Example: [ t̻ ]
- Lamino-alveolar: the tip of the tongue is located just below the edge of the lower teeth, the blade of the tongue comes into contact with the dam. Example: [ s̻ ]
- lamino-postalveolar: the tongue sheet makes contact with the outermost posterior convex part of the dental dam. Example: [ ʃ ]
- lamino-palatal: the tongue sheet comes into contact with the hard palate. In the IPA , these sounds are referred to as alveolar-palatal. Example: [ ɕ ] in Chinese : xuexi [ ɕyɛɕi "learn"].
Wiktionary: Laminal - explanations of meanings, word origins, synonyms, translations