Relating to or resembling a clithra or enclosed lock; having the quality of being locked or closed.
From Greek 'kleithron' (lock, bar) with English adjectival suffix '-al.' Rare architectural or mechanical term.
This is the kind of hyper-specific architectural jargon that only appeared in medieval building descriptions—imagine needing one word to mean 'locked in the manner of a specific type of bolt,' and that's clithral.
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