a quantity or amount, the smallest amount of many forms of energy (such as light), a theory in physics that describes the behavior of matter and its interactions with energy

quantum leap, quantum theory, quantum mechanics

Formal and Informal Expressions of quantum

In different contexts, you can replace 'quantum' with suitable alternatives. In a more formal setting, 'quantity, amount' is apt. In informal speech or writing, 'thing, stuff' is a commonplace synonym.

quantum: Explore its Definition & Usage

quantum Definition

1a quantity or amount
2the smallest amount of many forms of energy (such as light)
3a theory in physics that describes the behavior of matter and its interactions with energy

Using quantum: Examples

Take a moment to familiarize yourself with how "quantum" can be used in various situations through the following examples!

Example
The quantum of evidence was insufficient to convict him.
Example
The photon is a quantum of electromagnetic radiation.
Example
Quantum mechanics is a fundamental theory in physics that explains the behavior of matter and energy at the atomic and subatomic level.

quantum Synonyms and Antonyms

Synonyms for quantum

Phrases with quantum

quantum leap
a sudden and significant change or improvement
Example
The new technology represents a quantum leap in computing power.
quantum theory
a theory in physics that describes the behavior of matter and its interactions with energy
Example
Quantum theory explains the behavior of matter and energy at the atomic and subatomic level.
quantum mechanics
a branch of physics that deals with the behavior of matter and energy at the atomic and subatomic level
Example
Quantum mechanics is a fundamental theory in physics that explains the behavior of matter and energy at the atomic and subatomic level.

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Summary: quantum in Brief

The term 'quantum' [ˈkwɒntəm] refers to a quantity or amount, such as 'The quantum of evidence was insufficient to convict him.' It also refers to the smallest amount of many forms of energy, such as light, and to a theory in physics that describes the behavior of matter and its interactions with energy. 'Quantum' extends into phrases like 'quantum leap,' denoting a sudden and significant change or improvement.