The act or process or an instance of reducing. The state or condition of being reduced. The amount by which something is reduced. A form of an original. Webthe process of reducing something is reduction, or making it smaller. You can talk about a reduction of sugar in someone's diet or a reduction of prices at your favorite shoe store. Webreduction meaning, definition, what is reduction: A decrease in the size, price, or amount. : Webthe meaning of reduction is the act or process of reducing : The state of…