segmentation

noun

seg·​men·​ta·​tion ˌseg-mən-ˈtā-shən 

-ˌmen-

: the process of dividing into segments

especially : the formation of many cells from a single cell (as in a developing egg)

Examples of segmentation in a Sentence

the segmentation of the population

Recent Examples on the Web

Municipal utilities, transit systems and local banks should adopt multi-factor authentication, network segmentation, regular penetration testing and robust incident response plans. —Rick Pozniak, Boston Herald, 4 Mar. 2026

After the Ukraine grid attacks of the mid 2010s, several European states accelerated cybersecurity investment, improving network segmentation, expanding backup capacity and deepening information sharing with private infrastructure operators. —Andrew Latham, The Conversation, 3 Mar. 2026

That segmentation is forcing sourcing teams to rethink how portfolios are constructed. —Muchaneta Ten Napel, Sourcing Journal, 27 Feb. 2026

This is a tunnel to nowhere and just a part of a much larger plan costing tens of billions more, but segmentation isn’t permitted under the law for funding purposes. —New York Daily News Editorial Board, New York Daily News, 6 Feb. 2026

Word History

First Known Use

1851, in the meaning defined above

Phrases Containing segmentation

• segmentation cavity

Rhymes for segmentation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids Definition

segmentation

noun

seg·​men·​ta·​tion ˌseg-mən-ˈtā-shən 

-ˌmen-

: the process of dividing into segments

especially : the formation of many cells from a single cell (as in a developing egg)

Medical Definition

segmentation

noun

seg·​men·​ta·​tion ˌseg-(ˌ)men-ˈtā-shən 

1

: the act or process of dividing into segments

especially : the formation of many cells from a single cell (as in a developing egg)

2

: annular contraction of smooth muscle (as of the intestine) that seems to cut the part affected into segments compare peristalsis