red-blind

Thân thiện

A person who is red-blind sees a red apple as a dull brownish-green.

Definition

Adjective: * Having a form of color blindness characterized by an inability or decreased ability to see the color red or to distinguish between red and bluish-green hues. This condition is a type of dichromacy.

Usage

The adjective "red-blind" is used to describe a person's visual condition. It is typically used in medical, optometric, or descriptive contexts. * It is often used predictively (after a linking verb like "is" or "was"). * It can also be used attributively (before a noun).

Examples

• Predictive use:
  • After the test, the optometrist confirmed that the patient was red-blind.
  • He is red-blind, so he often confuses red and green traffic lights.
• Attributive use:
  • The study included participants with red-blind vision.
  • A red-blind individual may perceive a red apple as a shade of brown or gray.

Advanced Usage

• The condition of being red-blind is formally known as protanopia (complete absence of red cone cells) or protanomaly (a reduced sensitivity to red light). In less technical contexts, "red-blind" is a more accessible term.
• It is one of the most common forms of color vision deficiency.

Variants and Related Words

• Protanopia (n): The technical term for complete red-blindness.
• Protanomaly (n): The technical term for partial red-blindness.
• Color-blind (adj): The general term for any deficiency in color vision.
• Dichromat (n): A person with a form of color blindness where only two types of cone cells are functional, which includes being red-blind.

Synonyms

• Protanopic (adj) - specifically for complete red-blindness.
• Red-deficient (adj) - a more general descriptive term.

Antonyms

• Trichromatic (adj): Having normal color vision with three functioning types of cone cells.

Học thuật

Adjective

1. inability to see the color red or to distinguish red and bluish-green

Từ đồng nghĩa

• protanopic