- Structure - Team of ballroom dancers - The act of giving form or shape to anything; a forming;
a shaping. - The manner in which a thing is formed; structure;
construction; conformation; form; as, the peculiar formation of the
heart. - A substance formed or deposited. - Mineral deposits and rock masses designated with
reference to their origin; as, the siliceous formation about geysers;
alluvial formations; marine formations. - A group of beds of the same age or period; as, the
Eocene formation.