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1)
#21,648
せいこうい
Meaning
    1. ①
      sexual act; sexual intercourse
      Syphilis is an infection that can be transmitted through sexual intercourse.
    1. ①
      EN Sexual intercourse, or coitus or copulation, is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure...
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2)
せいこういかんせんしょう
Meaning
    1. ①
      medicine
      sexually transmitted disease; sexually transmitted infection; STD; STI
    1. ①
      EN ("Sexual disease" redirects here.
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