- 1The action of forming or process of being formed: the formation of the Great Rift ValleyMore example sentences
- The creative process of formation was more important than the production of pictures.
- Firstly, the process of government formation is going to be dominated by three factors.
- During this time the molecular processes of memory formation which underlie addiction are accelerated.
- 2A structure or arrangement of something: a cloud formationMore example sentences
- Building on the tactics of skirmishers, open-order tactics possessed only loose tactical formations.
- They were arrayed in a circular formation, guarding something within.
- These are crystal formations with structured spaces or pores in them.
- 2.1A formal arrangement of aircraft in flight or troops: a battle formation the helicopters hovered overhead in formationMore example sentences
- The 12 aircraft turned east in formation and descended to 5,000 feet.
- Aircraft flying in formation normally maintain equal distances from one another.
- The troops then marched in formation to the gate and the camp was handed over to a contingent of troops from Ghana.
- 2.2 Geology An assemblage of rocks or series of strata having some common characteristic.More example sentences
- Using analogous colors would have broken down the cohesive whole into smaller but related parts like strata in a rock formation.
- Why, then, is not every geological formation and every stratum full of such intermediate links?
- Pyroclastic rocks are preserved in nearly every limestone and sandstone formation of the Hungarian Palaeogene Basin.
- More example sentences
- ‘To provide for the common defense’ is one of the formational principles of America.
- The social formational power, over 75 years, of the song-dedication formula, in compensating what Thompson described as the ‘non-reciprocal intimacy’ of electronic media, is incalculable.
- A resulting unexpected problem was that because the early practice of abilities was formational, students did not have as clear of a picture of where they stood with grades as they would have liked.
late Middle English: from Latin formation-, from formare 'to form' (see form).