Meaning & Definition of word "Atom"
to
Atom
/ˈæt.əm/
noun:
- 1. The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.
- Example: An atom of hydrogen is the simplest and lightest atom.
- 2. A minute quantity of a substance; a tiny amount.
- Example: Not a single atom of evidence was found to support the claims.
- 3. In physics, an atom is described as the basic building block of matter.
- Example: All matter is made up of atoms, which combine to form molecules.
Etymology
From Greek 'atomos' meaning 'indivisible'.
Common Phrases and Expressions
split atom:
To make a significant change or innovation.
at the atomic level:
Referring to the fundamental structure of matter.
to the last atom:
Completely or thoroughly.
Related Words
molecule:
A group of atoms bonded together.
nucleus:
The positively charged center of an atom.
electron:
A subatomic particle with a negative charge.
Slang Meanings of atom
Meaning: A small or insignificant person.
Example Sentence: He's just an atom in the big world of finance.
Meaning: Used to refer to someone very meticulous or detail-oriented.
Example Sentence: She’s an atom when it comes to planning events.