Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

β粒子 (beetaryuushi) Japanese meaning: beta particle | Kotomora

β粒子べーたりゅうし

ベ

ー

タ

りゅ

う

し

Meanings

1

beta particle

Technical term in physics; refers to a high-energy electron or positron emitted during beta decay.

β粒りゅう子しは、原げん子し核かくから放ほう出しゅつされる電でん子

し

また

は

陽よう

電でん

子し

です

。

Beta particles are electrons or positrons emitted from an atomic nucleus.

Kanji

粒grains, drop, counter for tiny particles
子child, sign of the rat, 11PM-1AM

Related words

α粒子あるふぁりゅうし
Alpha particles are helium nuclei, much heavier and less penetrating than beta particles.
γ線がんません
Gamma rays are electromagnetic radiation, more penetrating than beta particles.

Written forms

β粒子べーたりゅうし
Standard scientific notation using the Greek letter beta.
ベータ粒りゅう子し
Kana spelling of beta; common in less technical contexts or when Greek letters are unavailable.

Etymology

From English 'beta particle'. The kanji 粒子 means 'particle'.