原げん子し爆ばく弾だん

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Meanings

noun

atomic bomb; A-bomb

Formal term for a nuclear fission weapon. In everyday Japanese, the abbreviation 原爆 is more common, but 原子爆弾 is used in formal, historical, or technical contexts.

Kanji

原meadow, original, primitive
子child, sign of the rat, 11PM-1AM
爆bomb, burst open, pop
弾bullet, twang, flip

Related words

原げん爆ばく
Common abbreviation of 原子爆弾. Used in everyday speech and news; 原子爆弾 is more formal and explicit.
水すい素そ爆ばく弾だん
Hydrogen bomb (thermonuclear weapon). A more powerful type of nuclear weapon than an atomic bomb.
核かく兵へい器き
Nuclear weapon (general term). 原子爆弾 is a specific type of nuclear weapon.

Politeness

原げん爆ばくplainN1
原爆 is the everyday abbreviation, while 原子爆弾 is the full, formal term used in official or technical contexts.

Built from

原げん子し+爆ばく弾だん

Etymology

Compound of 原子 (atom) and 爆弾 (bomb). The term entered Japanese in the mid-20th century with the advent of nuclear weapons.