for.ma.tion
n.(名词)The act or process of forming something or of taking form.形式,组成:给予某种东西形状或使之获得形状的动作或过程Something formed:形成物:已形成的东西:例句:beautiful cloud formations.美丽的云层
The manner or style in which something is formed; structure:结构:事物形成的样式;结构:例句:the distinctive formation of the human eye.人眼的独特结构
A specified arrangement or deployment, as of troops.队形:军队等的特殊组合和排列Geology The primary unit of lithostratigraphy, consisting of a succession of strata useful for mapping or description.【地质学】 地层,岩组:岩石地层的基本单位,构成用于制图或描绘的一系列层次
【引伸】
forma.tional
adj.(形容词)