Relating to the inside; situated within.
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in·te·ri·or in-'tir-ē-ər adj lying, occurring, or functioning within limiting boundaries
interior n the internal or inner part or cavity of a thing
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in·te·ri·or (in-tērґe-ər) [L. “innerâ€; neut. interius] 1. situated inside; inward. 2. an inner part or cavity.Medical dictionary. 2011.