claustral

[klaw-struh l] /ˈklɔ strəl/
adjective
1.
cloistral; cloisterlike.
Origin
1400-50; late Middle English < Late Latin claustrālis, equivalent to claustr(um) bolt, barrier (see claustrum) + -ālis -al1
British Dictionary definitions for claustral

claustral

/ˈklɔːstrəl/
adjective
1.
a less common variant of cloistral

cloistral

/ˈklɔɪstrəl/
adjective
1.
of, like, or characteristic of a cloister
Word Origin and History for claustral
adj.

"resembling a cloister," early 15c., from Middle French claustral (15c.) and directly from Medieval Latin claustralis "pertaining to a claustrum" (see cloister).