Kumi logo
    Kumi

    Learn Japanese. Where understanding folds into fluency.

    Dictionary

    KanjiKanji vocabularyKana vocabularyKanaRadicalsGrammarJLPT N5

    Learn

    GuidesStart where you areWhat is KMT?RoadmapFAQ

    Connect

    EmailDiscordInstagramThreadsTikTokYouTubeLinkedInBlueskyX

    Newsletter

    Start learning free →

    Free forever tier. No card required.

    © 2026 Kumiai Inc. All rights reserved.

    AboutFAQContactStatusPrivacyTermsAttributions
    Dictionary
    1. Dictionary
    2. Kanji Vocab
    3. 原子核

    原子核

    原げん子し核かく

    nucleus

    KMT8News #23+1NounScience & MathKanji Vocab23 strokes

    げんしかく

    Noun

    1.
    nucleus, atomic nucleus
    physics

    Stroke 0 / 23

    Speed1.0x

    原げん子し核かくは原げん子しの中ちゅう心しんにある。

    The atomic nucleus is at the center of an atom.

    KMT7Science & Math
    原げん子し核かくは陽よう子しと中ちゅう性せい子しから構こう成せいされる。

    The atomic nucleus is composed of protons and neutrons.

    KMT8Science & Math
    物ぶつ理り学がく者しゃは原げん子し核かくの構こう造ぞうを研けん究きゅうしている。

    Physicists are researching the structure of atomic nuclei.

    KMT8Science & MathEducation
    原げん子し核かく分ぶん裂れつは膨ぼう大だいなエネルギーを放ほう出しゅつする。

    Nuclear fission releases enormous energy.

    KMT9Science & Math
    放ほう射しゃ性せい同どう位い体たいは不ふ安あん定ていな原げん子し核かくを持もつ。

    Radioactive isotopes have unstable atomic nuclei.

    KMT9Science & Math

    Kanji that make up this word

    原
    はら…(6)
    meadow・original・primitive・field・plain…(3)
    子
    こ・-こ・ね…(9)
    child・sign of the rat・11PM-1AM・first sign of Chinese zodiac
    核
    nucleus・core・kernel
    Kumi logo

    Track your mastery

    Kumi's KMT system tracks your mastery across kanji, vocabulary, grammar, and reading. Create a free account to use it on 220,000+ concepts.

    Related concepts for this entry

    Used in vocabulary

    • 原
    • 子
    • 核

    Explore more

    Kanji Vocab dictionary›Browse all entries›