trigon

• 名词，指三边形或多边形有三个角的图形；在占星学中指黄道上相隔120度的三个星座组成的一组；也指古希腊罗马的一种三角形竖琴。

A noun referring to a three-sided polygon, or in astrology, a group of three zodiac signs separated by 120 degrees, or a triangular lyre from ancient Greece and Rome.

1. Three-sided polygonB2formal

   A geometric shape with three sides and three angles; a triangle.

   三边形

   • The trigon is the simplest polygon in geometry.
   • Students learned to calculate the area of a trigon.
   • The ancient Greeks studied the properties of the trigon extensively.

   同义词triangletrilateral

2. Astrological groupingC1formal

   In astrology, one of four groups of three zodiac signs that are 120 degrees apart, believed to share certain characteristics.

   三分相

   • Fire signs form one trigon in the zodiac.
   • Astrologers often analyze the trigon of water signs.
   • The trigon of earth signs is associated with practicality.

   同义词elementtriplicity

3. Ancient musical instrumentC2formal

   A triangular lyre used in ancient Greece and Rome, often associated with religious or festive music.

   三角竖琴

   • The trigon was played during ceremonies in ancient Rome.
   • Depictions of the trigon appear on Greek pottery.
   • Musicians in antiquity favored the trigon for its bright sound.