Intra is defined as within.
(prefix)An example of intra used as a prefix is in the word "intrapersonal," which means a person's relationship with him or herself.
See intra- in Webster's New World College Dictionary
Origin: L intra- < tra, within, inside < *intera, akin to interior, inter: see inter-
See intra- in American Heritage Dictionary 4
Origin:
Origin: Latin intrā-
Origin: , from intrā; see en in Indo-European roots
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