赤道(せきどう) せきどう noun equator 1. equator The imaginary line around the middle of the Earth, equidistant from the North and South Poles, dividing the Earth into Northern and Southern hemispheres. 赤道(せきどう)付近(ふきん)は暑(あつ)い。 It's hot near the equator. 赤道(せきどう)を越(こ)えると南半球(みなみはんきゅう)になる。 When you cross the equator, you enter the Southern Hemisphere. エクアドルは赤道(せきどう)直下(ちょっか)にある国(くに)だ。 Ecuador is a country directly on the equator. 赤道(せきどう)付近(ふきん)では一年中(いちねんじゅう)気温(きおん)が高(たか)い。 Near the equator, temperatures are high all year round. 赤道(せきどう)は地球(ちきゅう)を北半球(きたはんきゅう)と南半球(みなみはんきゅう)に分(わ)ける線(せん)だ。 The equator is the line that divides the Earth into the Northern and Southern Hemispheres. The 赤道(せきどう) is the line of 0° latitude that circles the Earth at its widest point. The name literally means 'red path' (赤(あか) = red, 道(みち) = road/path).GEOGRAPHICAL TERMS:北半球(きたはんきゅう): Northern Hemisphere南半球(みなみはんきゅう): Southern Hemisphere北緯(ほくい): north latitude南緯(なんい): south latitude赤道(せきどう)直下(ちょっか): directly on/under the equatorCLIMATE ZONES:熱帯(ねったい): tropical zone (near the equator)温帯(おんたい): temperate zone寒帯(かんたい): frigid zone (polar regions) core Added 2026.1.14 7:31 · Revised 2026.5.31 22:06 04000/04358_sekidou