资料来源 : pyDict

侄孙女,侄外孙女

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Grandniece \Grand"niece"\, n.
   The granddaughter of one's brother or sister.

资料来源 : WordNet®

grandniece
     n : a daughter of your niece or nephew [syn: {great-niece}]