Last Updated：2025/11/20

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

Having no mass.

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massless

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Source Word

massless

IPA(Pronunciation)

not-comparable

Having no mass.

Japanese Meaning

質量がない

What is this buttons?

In physics, photons are treated as massless particles that always travel at the speed of light.

Google Translation / DeepL Translation

物理学では、光子は常に光速で移動する、質量のない粒子として扱われる。

Sense（1）

Having no mass.

The photon is a massless particle.

Google Translation / DeepL Translation

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