FORMATION

formation. Formation, n. the act or manner of forming

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For‐ma″tion (fŏr‐mā″shŭn), n. [[L. formatio: cf. F. formation.]] 1. 1. The act of giving form or shape to anything; a forming; a shaping. Beattie.
2. 2. The manner in which a thing is formed; structure; construction; conformation; form; as, the peculiar formation of the heart.
3. 3. A substance formed or deposited.
4. 4. (Geol.) (a) Mineral deposits and rock masses designated with reference to their origin; as, the siliceous formation about geysers; alluvial formations; marine formations. (b) A group of beds of the same age or period; as, the Eocene formation.
5. 5. (Mil.) The arrangement of a body of troops, as in a square, column, etc. Farrow.