- the act or state of cohering, uniting, or sticking together.
- Physics. the molecular force between particles within a body or substance that acts to unite them.Compare adhesion(def 4).
- Botany. the congenital union of one part with another.
- Linguistics. the property of unity in a written text or a segment of spoken discourse that stems from links among its surface elements, as when words in one sentence are repeated in another, and especially from the fact that some words or phrases depend for their interpretation upon material in preceding or following text, as in the sequence Be assured of this. Most people do not want to fight. However, they will do so when provoked, where this refers to the two sentences that follow, they refers back to most people, do so substitutes for the preceding verb fight, and however relates the clause that follows to the preceding sentence.Compare coherence(def 5).
Origin of cohesion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the act or state of cohering; tendency to unite
- physics the force that holds together the atoms or molecules in a solid or liquid, as distinguished from adhesion
- botany the fusion in some plants of flower parts, such as petals, that are usually separate
C17: from Latin cohaesus stuck together, past participle of cohaerēre to cohere
Word Origin and History for non-cohesion
1670s, from French cohésion, from Latin cohaesionem (nominative cohaesio) "a sticking together," noun of action from past participle stem of cohaerere "to stick together" (see cohere).
Online Etymology Dictionary, © 2010 Douglas Harper
- The intermolecular attraction that holds molecules and masses together.
- The force of attraction that holds molecules of a given substance together. It is strongest in solids, less strong in liquids, and least strong in gases. Cohesion of molecules causes drops to form in liquids (as when liquid mercury is poured on a piece of glass), and causes condensing water vapor to form the droplets that make clouds. Compare adhesion.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.