คำว่า ' geometry ' ( N )
มีความหมายในภาษาไทยว่า เรขาคณิต
คำนิยามในภาษาอังกฤษ (definition) :
[n.] That branch of mathematics which investigates the relations, properties, and measurement of solids, surfaces, lines, and angles; the science which treats of the properties and relations of magnitudes; the science of the relations of space.
[n.] A treatise on this science.