Topic summary
Alveopalatal
Extracted from the Wikipedia article Postalveolar consonant.
There are many types of postalveolar sounds—especially among the sibilants. The three primary types are palato-alveolar (such as [ʃʒ], weakly palatalized; also alveopalatal), alveolo-palatal (such as [ɕʑ], strongly palatalized), and retroflex (such as [ʂʐ], unpalatalized). The palato-alveolar and alveolo-palatal subtypes are commonly counted as "palatals" in phonology since they rarely contrast with true palatal consonants.