Internal hard drive says no media. (medicine) Within the body. INTERNAL definition: situated or existing in the interior of something; interior. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Internal definition: Of, relating to, or located within the limits or surface; inner. adj. inside an object or building: . The meaning of INTERNAL is existing or situated within the limits or surface of something. Internal is used to describe things that exist or happen inside a country or organization. The adjective internal describes something on the inside. Definition of internal adjective in Oxford Advanced Learner's Dictionary. 1. Government of or relating to the domestic affairs of a country:[before a noun] a bureau of internal affairs. inside a person's mind: 3. Feb 14, 2026 · Adjective internal (comparative more internal, superlative most internal) Of or situated on the inside. Internal can also describe something that takes place within a country or a group. inside the body: 2. We now have a Europe without internal borders. Of, relating to, or located within the limits or surface; inner. We saw the internal compartments of the machine. INTERNAL definition: 1. If you're tempted by a second piece of cake, you may have an internal battle with yourself over whether you should eat the cake or not. of or relating to the inside or inner part: the internal organs of the body. The meaning of INTERNAL is existing or situated within the limits or surface of something. The country stepped up internal security. How to use internal in a sentence. In anatomy and zoology, in general, inner or interior; not superficial; deep-set; away from the surface or next to the axis of the body or of a part: as, the internal carotid or iliac artery; the internal head of the gastrocnemius. See examples of internal used in a sentence. Learn more. Define internal. . Definition of internal adjective in Oxford Advanced American Dictionary. internal synonyms, internal pronunciation, internal translation, English dictionary definition of internal.