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等圧線 (touatsusen) Japanese meaning: isobar | Kotomora

等とう圧あつ線せん

と

う

あ

つ

せ

ん

Meanings

1

A line on a weather map connecting points of equal atmospheric pressure.

天てん気き図ずで等とう圧あつ線せんが混こんでいる所ところは風かぜが強つよい。

Where isobars are close together on a weather map, the wind is strong.

等とう圧あつ線せんの間かん隔かくが広ひろいと穏おだやかな天てん気きになる。

When isobars are widely spaced, the weather becomes calm.

Kanji

等etc., and so forth, class (first)
圧pressure, push, overwhelm
線line, track

Related words

等とう温おん線せん
Isotherm: a line connecting points of equal temperature, while 等圧線 connects points of equal pressure.
天てん気き図ず
Weather map: the chart on which 等圧線 are drawn.

Built from

等とう圧あつ+線せん

Etymology

Compound of 等 (equal) + 圧 (pressure) + 線 (line), a straightforward technical term.