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.
A noun is a word for a person, a place, or a thing. A singular noun is a word for one person, one place, or one thing. A possessive noun is a word that indicates that somethinâ¦g belongs to that person, place, or thing. A possessive singular noun is a singular noun that indicates that something belongs to that noun. EXAMPLES The doctor's office is on the second floor.