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🇯🇵Japanese Source WordCode: JA

放射線

Pronunciation / Transliteration: hōshasen

🇬🇧 Direct English Meaning:
Radiation/ˌreɪ.diˈeɪ.ʃən/
nounCEFR B2 (Upper)Top #2150 frequency
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🇯🇵 Example Sentence in Japanese:

"太陽の放射線は地球上の生命に不可欠です。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.

    "The radiation from the sun is essential for life on Earth."
  2. 2

    The process of emitting energy in the form of waves or particles.

    "Radiation therapy is commonly used to treat cancer."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Latin 'radius', meaning 'staff' or 'ray of a wheel', which entered English in the late 16th century via French and Latin scientific terminology. The modern physical sense relating to energy emission and atomic particles developed in the late 19th and early 20th centuries with the advent of nuclear physics.

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