rhomb

/rɔm/

Thân thiện

A child draws a rhomb on the chalkboard.

Definition

1. Noun:
   • A parallelogram with four equal sides; an oblique-angled equilateral parallelogram: In geometry, a "rhomb" is a flat shape (a quadrilateral) where all four sides have the same length, but the angles are not necessarily 90 degrees. It is a specific type of parallelogram.

Usage

• The word "rhomb" is a formal or technical term, primarily used in geometry and crystallography. In everyday language, the term "rhombus" is far more common and preferred. "Rhomb" is often considered a shortened form of "rhombus."

Examples

• Noun:
  • The crystal's structure was described as a perfect rhomb.
  • A square is a special case of a rhomb where all angles are right angles.

Advanced Usage

• In crystallography: The term "rhomb" can refer to a rhombohedron, a three-dimensional crystal form whose faces are congruent rhombuses.
  • Calcite often cleaves into rhombs.

Variants and Related Words

• Rhombus (n): The standard and more common term for a four-sided figure with equal sides. (e.g., )
• Rhombic (adj): Having the shape of a rhombus or rhomb. (e.g., )
• Rhombohedron (n): A three-dimensional figure whose six faces are congruent rhombuses.

Synonyms

• Rhombus: The direct and most frequent synonym.
• Equilateral parallelogram: A descriptive synonym emphasizing the equal sides.

Notes on Meaning

• The word "rhomb" has the same core meaning as "rhombus." The distinction is primarily one of usage frequency and register, with "rhombus" being the dominant term in general and educational contexts.

Học thuật

Noun

1. a parallelogram with four equal sides; an oblique-angled equilateral parallelogram

Từ đồng nghĩa

• rhombus
• diamond