- the act or process of forming or the state of being formed: the formation of ice.
- the manner in which a thing is formed; disposition of parts; formal structure or arrangement.
- a particular disposition of troops, as in columns, squares, etc.
- any required assembling of the soldiers of a unit.
- a body of rocks classed as a stratigraphic unit for geologic mapping.Compare member(def 8).
- the process of depositing rock or mineral of a particular composition or origin.
Origin of formation
Synonyms for formation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the act of giving or taking form, shape, or existence
- something that is formed
- the manner in which something is formed or arranged
- a formal arrangement of a number of persons or things acting as a unit, such as a troop of soldiers, aircraft in flight, or a football team
- (as modifier)formation dancing
- the fundamental lithostratigraphic unit
- a series of rocks with certain characteristics in common
- ecology a community of plants, such as a tropical rainforest, extending over a very large area
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
late 14c., from Old French formacion (12c.) or directly from Latin formationem (nominative formatio) "a forming, shaping," noun of action or condition from past participle stem of formare "to form" (see form (v.)).
Online Etymology Dictionary, © 2010 Douglas Harper
- The act or process of forming something or of taking form.
- Something formed.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A long, mappable body of rock that is recognizable by its physical characteristics and by its location within the rock record.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.