意味(日本語)

(数)四分円

語源

• quadr-, quadri- : L.quattour = four(四)、L.quartus=the fourth（第4の）

意味(英語)

• (noun) Mathematics A circular arc of 90°; one fourth of the circumference of a circle.
• (noun) Mathematics The plane area bounded by such an arc and two perpendicular radii.
• (noun) Mathematics Any of the four areas into which a plane is divided by the reference axes in a Cartesian coordinate system, designated first, second, third, and fourth, counting counterclockwise from the area in which both coordinates are positive.
• (noun) A machine part or other mechanical device that is shaped like a quarter circle.
• (noun) An early instrument for measuring altitude of celestial bodies, consisting of a 90° graduated arc with a movable radius for measuring angles.

例文

• As we all know, the Delta quadrant is the setting of Voyager, a series best not spoken of.

(数)四角形

語源

• quadr-, quadri- : L.quattour = four(四)、L.quartus=the fourth（第4の）

４倍の、４重の、(樂)四拍子の

語源

• quadr-, quadri- : L.quattour = four(四)、L.quartus=the fourth（第4の）