nonspherical

Thân thiện

The geologist holds a nonspherical rock sample.

Definition

1. Adjective:
   • Not spherical: Describes an object or shape that does not have the form of a perfect sphere; lacking perfect roundness or symmetry in three dimensions.

Usage

• The adjective "nonspherical" is used to describe the physical form of an object, contrasting it with a sphere. It is a technical term common in geometry, physics, astronomy, and engineering.
• It typically precedes a noun (e.g., a nonspherical particle) or follows a linking verb like "is" or "appears" (e.g., The shape is nonspherical).

Examples

• Adjective:
  • Astronomers study the orbits of nonspherical asteroids.
  • The liquid formed nonspherical droplets on the hydrophobic surface.
  • Many bacteria have nonspherical shapes, such as rods or spirals.

Advanced Usage

• Scientific Context: Used to specify deviations from an idealized spherical model, which can affect calculations in fields like fluid dynamics or celestial mechanics.
  • The planet's nonspherical geometry influences its gravitational field.

Variants and Related Words

• Aspherical (adj): Often used interchangeably in technical contexts, particularly in optics, to describe a lens surface that is not spherical.
• Spheroidal (adj): Refers to a shape that is almost spherical but slightly flattened or elongated.
• Ellipsoidal (adj): Specifically describes a three-dimensional oval shape.

Synonyms

• Asymmetrical (in a 3D context)
• Irregular (in shape)
• Non-round

Antonyms

• Spherical
• Round
• Globular

Học thuật

Adjective

1. not spherical