嬸媽 [婶妈]

Jyutping sam2 maa1
Pinyin shěn mā

Definitions (Wiktionary)
  1. noun, Hokkien, Xiamen
    great-aunt (grandfather's younger brother's wife)
    (syn.) 叔婆, 叔外婆, 叔祖母, 嬸婆, 婶婆, 叔娭毑