𤘨

* 《续通志》："…… 呼不能以画一也沈括梦溪笔谈梵学喉牙齿舌唇之外又有折摄二声折声自脐轮起至唇上发如字浮金反之类是也摄声鼻……"

(translated) folded sound, originating from the navel chakra and articulated on the lips, such as the sound "fǎn"