graph theory

noun

: a branch of mathematics concerned with the study of graphs

Examples of graph theory in a Sentence

Recent Examples on the Web

Although the problem’s framing might sound silly, the underlying mechanics have deep connections to group theory, knot theory, graph theory, and other areas of mathematics. — Emma R. Hasson, Scientific American, 5 Sep. 2026

The Math Behind The Problem The logic is straightforward, rooted in graph theory. — Vitalii Dodonov, Forbes.com, 21 May 2026

For example, the fields of combinatorics (often described as the science of counting) and graph theory (the science of networks) tend to be highly concrete and visual. — Leila Sloman, Quanta Magazine, 25 Mar. 2026

The research team then applied graph theory—a method involving mathematical structures often used to study social networks—to analyze how different brain regions were connected and how those connections changed over time. — Hannah Millington, MSNBC Newsweek, 11 Aug. 2025

Word History

First Known Use

1947, in the meaning defined above

Rhymes for graph theory

• kashmiri
• beery
• bleary
• cheery
• cirri
• dearie
• deary
• dreary
• eerie
• kiri
• leary
• leery