element, component, constituent, ingredient mean one of the parts of a compound or complex whole. element applies to any such part and often connotes irreducible simplicity.

An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that element.

A chemical element is a species of atom defined by its number of protons. The number of protons is called the atomic number of that element. For example, oxygen has an atomic number of 8: …

ELEMENT definition: 1. a part of something: 2. a small amount of an emotion or quality: 3. a simple substance that…. Learn more.

Nov 29, 2025 · Elements are the fundamental materials of which all matter is composed. Learn more about the origins, distribution, and characteristics of chemical elements in this article.

Definition of element noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

What is an element in chemistry? We explore the definition of an element, and discuss their characteristics and properties.

An element is a substance such as gold, oxygen, or carbon that consists of only one type of atom.

An element is something basic and important — in chemistry, an element is one of the essential molecules that everything else is made of. If a book's ending carries an "element of surprise," …

An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's atoms have the same atomic number. Elements …