sororal
sɔˈroʊrəl
Definitions
1. adjective
relating to or being the sister of a person or their family, especially in a biological or familial sense
“The sororal bond between the twins was incredibly strong.”
2. noun
a sister, especially in a biological or familial sense
“Her sororal influence helped to shape her worldview.”
3. noun
a female sibling, especially in a biological or familial sense
“The sororal relationship between the sisters was warm and loving.”