Meaning of EULER DIAGRAM in English

ˈȯilə(r)- noun

or eu·ler's diagram -)z-

Usage: usually capitalized E

Etymology: after Leonhard Euler died 1783 Swiss mathematician and physicist

: a graphic method employing circles to represent relations between and operations on classes and the terms of propositions by inclusion, exclusion, and intersection — compare venn diagram

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.