緯 線(いせん)

いせん

noun

line of latitude; parallel

geography science

1. line of latitude; parallel

An imaginary horizontal line on the earth's surface, running east-west, marking degrees of latitude from the equator.

地図(ちず)に緯線(いせん)を引(ひ)く。

To draw lines of latitude on a map.

赤道(せきどう)は緯度(いど)ゼロ度(ど)の緯線(いせん)である。

The equator is the line of latitude at zero degrees.

北緯(ほくい)38度(ど)の緯線(いせん)は朝鮮半島(ちょうせんはんとう)の軍事境界線(ぐんじきょうかいせん)の目安(めやす)として知(し)られている。

The 38th parallel north is known as a rough marker for the military demarcation line on the Korean Peninsula.

A geography term composed of 緯(い) (latitude) and 線(せん) (line). Lines of latitude run horizontally (east-west) around the globe, in contrast to 経線(けいせん) (lines of longitude), which run vertically (north-south).

Common collocations

緯線(いせん)と経線(けいせん) — latitude and longitude lines
北緯(ほくい)〜度(ど)の緯線(いせん) — the latitude line at 〜 degrees north
緯線(いせん)に沿(そ)って — along the line of latitude

Related words

経線(けいせん) — line of longitude; meridian
緯度(いど) — latitude (the measurement itself)
赤道(せきどう) — equator (the zero-degree latitude line)

Related Words

Related: 経線(けいせん) (line of longitude)

Related: 緯度(いど) (latitude)

Related: 赤道(せきどう) (equator)

Related: 子午線(しごせん) (meridian)

general

Added 2026.4.30 20:28 · Revised 2026.9.2 13:02

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