rotation

rotation

意味(日本語)

回転、循環

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

意味(英語)

  • (noun) The act or process of turning around a center or an axis: the axial rotation of the earth.
  • (noun) A single complete cycle of such motion.
  • (noun) Mathematics A transformation of a coordinate system in which the new axes have a specified angular displacement from their original position while the origin remains fixed.
  • (noun) Regular and uniform variation in a sequence or series: a rotation of personnel; crop rotation.
  • (noun) Games An order of shooting balls in billiards in which the ball with the lowest number on the table is always pocketed first.

例文

  • My longest item in rotation is probably roast chicken with lemon and garlic.

頭文字:

語源が同じ単語を一緒に覚えよう

role

role

役割、配役、役目

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

rotary

rotary

ロータリー

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

【広告】

rotate

rotate

回転する ◇L.rata(=輪)

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

rotational

rotational

回転の、交替の

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

rotund

rotund

丸々とふとった

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

rotundity

rotundity

丸いこと、肥満

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

rotunda

rotunda

(丸屋根のある)円形建築 ◇rotund

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

round

round

円、丸い

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)

roundabout

roundabout

= rotary(米)、回り道の、ラウンドアバウト(英)環状公差路

語源

  • rot- : L.rotare=to swing round(回転させる)、L.rota=a wheel(車輪)