分ふん銅どう

noun

weight (for scales); counterweight

Refers to a metal weight used in balance scales or as a counterweight in mechanical devices. Common in contexts like old-fashioned scales, clocks, or elevators.

• 天てん秤びんに分ふん銅どうを載のせて重おもさを量はかる。

  Place a weight on the balance scale to measure the mass.

• この古ふるい時計とけいは分ふん銅どうで動うごいている。

  This old clock runs using a counterweight.