The Collaborative International Dictionary
Cloistress
Cloistress \Clois"tress\, n.
A nun. [R.]
--Shak.
Wiktionary
cloistress
n. (context obsolete English) A nun.
Usage examples of "cloistress".
Someone, probably Cloistress Gannet, had seen to it that she had everything she needed to take a bath.
She was a comely bird, heavy as a newborn, trained by the cloistresses in their mountain tower, capable of flying the cold currents of dawn and twilight, and inbred with ancestral memories of Spire Vanis.