1. resembling or characteristic of a sister; having sisterly qualities
Usage: rare; literary

Examples

• Her sistroid affection for the younger girls was evident in how she cared for them.
• The sistroid bond between the two women grew stronger over the years.
• She displayed a sistroid concern for her friend’s wellbeing.
• The sistroid relationship among the group members created a supportive environment.
• Her sistroid nature made her a natural mentor to newcomers.