A laminal (Latin: leaf lamina ) is designated by the articulation organ speech sound.
In the IPA transcription laminale consonants are marked by a square under the letter.
Laminale sounds are formed by the tongue blade engages the points of articulation upper lip, upper teeth, dental dam and the arch prepalatal the palate or forms a strait with them.
- Lamino - dental: the reed is at the back of the upper teeth and the tongue tip is located just below the edge of the teeth. Example: [ T]
- Lamino - alveolar: the tongue tip is located just below the edge of the teeth, the tongue blade contacts the alveolar ridge in contact. Example: [ s]
- Lamino - postalveolar: the tongue blade interacts with the extreme rear convex part of alveolar ridge in contact. Example: [ ʃ ]
- Lamino - palatal: the tongue blade comes into contact with the hard palate. In the IPA, these sounds are called alveolar - palatal with the term. Example: [ ɕ ] in Chinese: xuexi [ ɕyɛɕi ] "learn".