fuel cell. (physical chemistry). An electrochemical device in which the reaction between a fuel, such as hydrogen, and an oxidant, such as oxygen or air, converts the chemical energy of the fuel directly into electrical energy without combustion.
The word 'soup' is a noun, a common, concrete noun; a word for a thing. The word 'soup' also functions informally as a verb for the term to 'soup up', to change something inâ¦ order to make it faster or more powerful or effective. 2 people found this useful.
noun-the word class that can serve as the subject or object of a verb, the object of a preposition, or in apposition. collective noun-a noun that is singular in form but refers to a group of people or things. mass noun-a noun that does not form plurals. count noun-a noun that forms plurals. generic noun-a noun that does not specify either masculine or feminine gender.