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.
No, the word flowers is not an adjective. Specifically, the word does not modify a noun. Instead, the word may function as either a noun or a verb in a sentence or phrase. A â¦ s a noun, it is the plural form of the word flower.. As a verb, it represents the third person singular (he/she/it) of the present indicative of the infinitive to flower.. Aaron McClellan.