Learn English – “periphery” and “perimeter” — are they the same?


I looked up in the dictionary and found they both mean the boundary of a closed curve, or the extended meaning “not the center”. Are they synonyms?

Best Answer

They have a close meaning and can be synonymous in some cases. The New Oxford American Dictionary lists one of the meanings of perimeter, “the outermost parts or boundary of an area or object,” which is also the main definition of periphery.

However, the most usual meaning of perimeter is geometrical: it means the line delimiting a figure or an object.