retroflex
/ˌrɛtrəˈflɛks/Definitions
1. noun
A speech sound made by bending the tongue back towards the roof of the mouth, typically with the tip of the tongue behind the alveolar ridge.
“The linguist studied the retroflex consonant in the indigenous language.”
2. adjective
Describing a speech sound made by bending the tongue back towards the roof of the mouth.
“Retroflex consonants are characteristic of many Asian languages.”