Peripheric means situated on the edge or margin of something. When we talk about synonyms for this word, we can say that words like peripheral, marginal, outer, exterior, and boundary are similar to it. The word peripheral means the outer edges of something or located on the periphery of something. The term marginal refers to something located at the border or edge of something else. Exterior means located on the outside, at the surface, or surrounding something else. Boundary is another synonym for peripheric, which means something that is located or situated at the edge of something. All these words are used to refer to something that is situated or located at the edge or margin of something else.