n.

1. 載明；詳述[U][（+of）]
2. 規格；明細單；詳細計畫書[P][（+for）]
   The engineer can't start working without the specification for the design.

   沒有關於設計的詳細計畫，工程師無法開工。

3. （產品等的）說明書；說明書中載明的項目[C]
   the specification of a microwave oven

   微波爐說明書

n.

1. the action of specifying.
2. (usu. specifications) a detailed description of the design and materials used to make something.
   ▸a required standard of workmanship or materials in a piece of work.
   ▸a description of an invention accompanying an application for a patent.