quadrant

四分区画

直角に交わる二本の線で分けられた、四つの区域の一つ。

やさしい英語で： One of four parts of an area divided by two lines crossing at right angles.

• The mark is in the upper quadrant.
• They searched the southwest quadrant of the site.
• Divide the page into four quadrants.

類義語： quarter, section

よく使う表現： upper quadrant, lower quadrant, quadrant of something

象限

座標平面を横軸と縦軸で分けた四つの領域の一つ。

やさしい英語で： One of four regions on a graph, separated by the horizontal and vertical axes.

• The point lies in the first quadrant.
• Both coordinates are negative in the third quadrant.
• Plot these points in the correct quadrants.

よく使う表現： first quadrant, second quadrant, third quadrant

四分円

中心の角度が九十度になる、円の四分の一。

やさしい英語で： A quarter of a circle, forming an angle of ninety degrees at the center.

• Draw a quadrant of a circle.
• The quadrant has a ninety-degree angle at its center.
• Four equal quadrants form a complete disc.

類義語： quarter circle

よく使う表現： quadrant of something, circular quadrant

区分、カテゴリー

対戦相手の強さに応じてチームの成績を評価する、四つの区分の一つ。

やさしい英語で： One of four groups used to rate a team’s results according to how difficult its opponents were.

• The team needs more quadrant one wins.
• An away victory may fall into a stronger quadrant.
• The committee compared each team’s record across all four quadrants.

類義語： category

よく使う表現： quadrant one, quadrant wins, quadrant record