The definition of internal is something having to do with the inside, inner parts or inner nature.(adjective)
An example of internal is an internal medicine doctor specializing in Cardiology.
See internal in Webster's New World College Dictionary
Origin: ML internalis < L internus, inward, internal, akin to inter: see inter-
See internal in American Heritage Dictionary 4
Origin: Middle English internall
Origin: , from Old French internel
Origin: , from Medieval Latin internālis
Origin: , from Latin internus
Origin: , from inter, within; see en in Indo-European roots.
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