noun, noun or participle which takes 'suru'
crouching; formal crouch (sumo, kendo)
A deep, formal crouching posture used at the start of sumo and kendo matches; also refers to the act of crouching in general. In martial arts, it is a specific ceremonial stance.
力士は土俵の上で蹲踞の姿勢をとった。
The sumo wrestler assumed the crouching posture on the ring.
In a kendo match, you crouch and then stand up.