formation
/fɔ:ˈmeɪʃn; fɔr`meʃən/ n
1 [U] organizing and developing (of sth) （某事物的）组织, 形成, 构成
the formation of a new government 新政府的组成
the formation of national character 民族特性的形成.
2 [C] thing that is formed, esp in a particular or characteristic way 形成物（尤指结构特殊的）; 结构
cloud, rock formations 云层、 岩层
new word formations 新词的构成.
3 [U] particular arrangement or pattern 编排; 编队; 队形
aircraft flying in formation 编队飞行的飞机
[attrib 作定语]
for`mation flying 编队飞行.