Definition of "Element" :

noun: an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system

"A component or constituent element of a system."

noun: an abstract part of something

"The grammatical elements of a sentence."

noun: the most favorable environment for a plant or animal

"Water is the element of fishes."

noun: a straight line that generates a cylinder or cone

noun: the situation in which you are happiest and most effective

"In your element."

noun: any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

noun: one of four substances thought in ancient and medieval cosmology to constitute the physical universe

"The alchemists believed that there were four elements."