Definition

1. Noun:
   • The normal ability to see colors: Color vision is the faculty or capacity of the visual system to perceive and distinguish different wavelengths of light as distinct colors. It is a standard function of the human eye under typical conditions.

Usage

• Color vision is typically discussed in the contexts of biology, medicine, psychology, and optometry.
• It is often used to describe a person's visual capability or to contrast with conditions like color blindness.
• Example:

Examples

• Noun:
  • Most primates have trichromatic color vision.
  • The test is designed to check for deficiencies in color vision.
  • Advances in technology have helped scientists understand the mechanisms of color vision.

Advanced Usage

• "to have normal color vision": to possess the typical ability to distinguish colors.
  • The job requires candidates to have normal color vision.
• "color vision deficiency": a condition where the ability to distinguish certain colors is reduced; a formal term for color blindness.
  • Color vision deficiency is more common in men than in women.

Variants and Related Words

• Color-blind (adj): having a deficiency in color vision.
  • He is color-blind and cannot distinguish between red and green.
• Chromatic vision (n): a technical synonym for color vision.
• Trichromacy (n): the condition of having three types of color receptors (cones) in the eyes, which is the basis for normal human color vision.

Synonyms

• Chromatic perception: the perception of color.
• Color perception: the ability to see and identify colors.

Related Phrases

• Test for color vision: to examine someone's ability to see colors correctly.
  • The doctor will test for color vision using special plates.
• Loss of color vision: a deterioration or absence of the ability to see colors.
  • The injury resulted in a temporary loss of color vision.

Related Idioms

(No common idioms are directly based on the term "color vision." It is a technical term used literally.)

Noun

1. the normal ability to see colors