風ふう向こう計けい

noun

anemoscope

A meteorological instrument that shows the direction of the wind, distinct from an anemometer which measures wind speed. Technical term.

• 風ふう向こう計けいは風かぜの方ほう向こうを観かん測そくするのに使つかわれる。

  An anemoscope is used to observe wind direction.