chromatic number
chromatic number noun: the smallest number of colours needed to colour a given graph (i.e., to assign a colour to each vertex such that no two vertices connected by an edge have the same colour).

Noun
chromatic number (plural chromatic numbers)
- The smallest number of colours needed to colour a given graph (i.e., to assign a colour to each vertex such that no two vertices connected by an edge have the same colour).
- The chromatic number of a complete graph K#95;n is n; the chromatic number of a bipartite graph K#95;#123;n,m#125; is 2.
- The chromatic number of a graph G is the minimum value of k for which G is k-colourable, and is denoted by #92;chi(G).[…]A more essential use of the chromatic number was made by Gallai (1968a) and Roy (1967), who discovered a simple relationship between the chromatic number of a digraph and the...1995, J. A. Bondy, “1: Basic Graph Theory: Paths and Circuits”, in Ronald L. Graham, Martin Grötschel, László Lovász, editors, Handbook of Combinatorics, Volume 1, Elsevier (North-Holland), page 48
- Synonyms:
- vertex chromatic number
chromatic number meaning in Tamil
chromatic number in Tamil
- வண்ண எண்
Synonyms of chromatic number
- vertex chromatic number
Forms of chromatic number
| plural | chromatic numbers |
|---|
Words formed from chromatic number
- chromatic number problem
- edge chromatic number
- harmonious chromatic number
- total chromatic number
Questions about chromatic number
- What does chromatic number mean?
- Chromatic number means the smallest number of colours needed to colour a given graph (i.e., to assign a colour to each vertex such that no two vertices connected by an edge have the same colour).
- What is chromatic number in Tamil?
- Chromatic number in Tamil is வண்ண எண். See Chromatic number meaning in Tamil.
- What part of speech is chromatic number?
- Chromatic number is a noun.
- What is the plural of chromatic number?
- The plural of chromatic number is chromatic numbers.
Words near chromatic number in the dictionary
Source and license
Adapted from Wiktionary: chromatic number (page history and authors); chromatic number (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “chromatic number.” Word.ws, https://word.ws/chromatic_number. Based on Wiktionary, CC BY-SA 4.0.
