Whats great great grandmother mean?

Question:

Whats great great grandmother mean?

whats great great grandmother??
great grandmother is mother of my grandma so .
is great grandmother, grandmother of my grandmother
and great great grandmother, mother of the grandmother of my grandmother??? PLZ ANSWER ME!

Best Answer - Chosen by Asker: Great-great grandmas are grandmothers of any/each/all of your four grandparents.

You -> 2 parents -> 4 grandparents -> 8 great grandparents -> 16 great-great grandparents (8 are female)

(gee I hope I got that right!)