tròn xoay

Quả bóng tròn xoay lăn trên mặt đất.

Definition

1. Adjective:
   • Perfectly spherical / completely round: Describes an object that is round in all dimensions, like a ball or sphere, with a smooth, even shape.
   • Of revolution (Mathematics): In geometry, describes a surface or solid created by rotating a curve around an axis.

Usage Examples

• Adjective:
  • Quả bóng tròn xoay. (A perfectly spherical ball.)
  • Đây là một mặt tròn xoay. (This is a surface of revolution.)

Advanced Usage

• "tròn xoay" in technical contexts: Used in mathematics and engineering to describe shapes generated by rotation.
  • Vật thể được tạo ra có dạng tròn xoay. (The created object has a shape of revolution.)

Variants and Related Words

• Tròn (adj): round, circular.
  • Chiếc bánh có hình tròn. (The cake has a round shape.)

Synonyms

• Spherical: shaped like a sphere.
• Rotational: relating to or caused by rotation (for technical use).