Definition

1. Noun:
   • Half-circle, semicircle: A two-dimensional geometric shape that is exactly half of a full circle, bounded by a diameter and the arc of the circumference.
   • Semicircular: Used as an adjective to describe any object, structure, or shape that has the form of a half-circle.

Usage Examples

• Noun:
  • Phòng họp được thiết kế theo hình bán nguyệt. (The meeting room is designed in a semicircular shape.)
  • Cô ấy vẽ một cung bán nguyệt lên bảng. (She drew a semicircular arc on the board.)
• Adjective:
  • Chiếc bàn bán nguyệt được đặt ở góc phòng. (The semicircular table was placed in the corner of the room.)
  • Hồ bán nguyệt trong khu vườn rất đẹp. (The semicircular pond in the garden is very beautiful.)

Advanced Usage

• Anatomical Term: Used in anatomical names to describe crescent-shaped structures.
  • Xương bán nguyệt is a term for the semilunar bone (lunate bone) in the wrist.
  • Ống bán nguyệt refers to the semicircular canals in the inner ear.

Variants and Related Words

• Hình bán nguyệt (n): Semicircular shape.
• Cung bán nguyệt (n): Semicircular arch or arc.

Synonyms

• Semicircle: The most direct synonym for the geometric shape.
• Half-moon: A more descriptive synonym, often used for objects resembling the shape of the moon in its first or last quarter.
• Demi-lune: A term of French origin, sometimes used in specific contexts like furniture or fortifications.

Related Terms and Contexts

• Bàn bán nguyệt: A demi-lune table, a specific type of furniture with a half-moon shape.
• Hồ bán nguyệt: A semicircular pond or lake, a common feature in traditional garden design.
• In mathematics and geometry, it is directly associated with the properties of a circle divided along its diameter.

noun

1. Half-circle, semi-circle
   • hình bán nguyệt
     semicircular shape