抗原(こうげん)

こうげん
noun
antigen
1. antigen
A substance that triggers an immune response in the body, causing the production of antibodies. Commonly encountered in the context of medical testing and vaccines.
抗原(こうげん)検査(けんさ)を受(う)けた。
I took an antigen test.
抗原(こうげん)が体内(たいない)に入(はい)ると、免疫(めんえき)反応(はんのう)が起(お)きる。
When an antigen enters the body, an immune response occurs.
薬局(やっきょく)で抗原(こうげん)検査(けんさ)キットを購入(こうにゅう)して、自宅(じたく)で検査(けんさ)した。
I bought an antigen test kit at the pharmacy and tested at home.

USAGE:
Became widely known during the COVID-19 pandemic through 抗原(こうげん)検査(けんさ) (antigen test). The term is now familiar to most Japanese speakers.

NOTE: A homophone of 高原(こうげん) (plateau, highland).

COMMON COLLOCATIONS:

  • 抗原(こうげん)検査(けんさ) (antigen test)
  • 抗原(こうげん)検査(けんさ)キット (antigen test kit)
  • 抗原(こうげん)陽性(ようせい) (antigen positive)

RELATED WORDS:

  • 抗体(こうたい): antibody
  • 免疫(めんえき): immunity
  • PCR検査(けんさ): PCR test
general
Added 2026.3.19 17:33
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