Equator



GRE 考研

解释

GRE 红宝书

• n.赤道
• ［英］ n.赤道 ( imaginary line around the earth at an equal distance from the North and South Poles)
• ［记］ equate+or -> 使 ( 地球) 平分 -> 赤道

Webster Collegiate

noun

• Etymology: Middle English, from Medieval Latin aequator, literally, equalizer, from Latin aequare
• Date: 14th century
• 1. the great circle of the celestial sphere whose plane is perpendicular to the axis of the earth
• 2. a great circle of the earth or a celestial body that is everywhere equally distant from the two poles and divides the surface into the northern and southern hemispheres
• 3.
  • a. a circle or circular band dividing the surface of a body into two usually equal and symmetrical parts
  • b. equatorial plane <the equator of a dividing cell>
• 4. great circle

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