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Glite Dictionary
red-blindness

red-blindness

8.8
Trouble telling red from similar colors like purple
  • noun
  • /rɛdˈblaɪndnəs/
  • Specialized
translation icon : daltónismo
  • People with red-blindness often have trouble recognizing traffic signals correctly.

Examples

  • Testing for red-blindness is common during routine eye examinations.

  • Because of his red-blindness, he avoids certain professions that require accurate color vision.

  • Many people with red-blindness struggle to see certain colors.

  • Is red-blindness common among men?

  • People with red-blindness find it hard to differentiate between red and green colors.

  • During his vision test, the doctor explained that red-blindness affects how he perceives some colors.

  • Individuals suffering from red-blindness may not see the red light in a traffic signal.

Synonyms

color blindness
vsred-blindness
  • US
1 3.7

Not able to tell some colors, often red and green

is a specific deficit of long wavelength sensitivity causing red and purplish blue confusion
protanopia
vsred-blindness
  • Specialized
9.9

A reduced ability to see red light that makes people confuse red and green

is the general term used more widely rather than the scientific name
red-green color blindness
vsred-blindness
3.4

Difficulty telling red and green colors apart

focuses on confusion between red and purplish blue rather than red and green
red-green dichromacy
vsred-blindness
  • Specialized
8.8

A vision problem that makes red and green look similar

focuses on confusion between red and purplish blue rather than red and green
color vision deficiency
vsred-blindness
  • Specialized
5.0

A problem where a person cannot tell some colors apart, often red and green

is the specific form caused by reduced long wavelength sensitivity

Surface Forms

red-blindness singular
red-blindnesses plural

Morphology

red-blindness = red + blind (transparent) = red + blind + ness

The compound 'red-blind' clearly combines 'red' and 'blind' to mean difficulty perceiving red hues; adding '-ness' forms the noun denoting that condition.

Etymology

Red-blindness comes from the two simple parts red and blindness, where blindness means 'not seeing'. So red-blindness literally means 'not seeing red', which helps explain why people with it have trouble telling red and similar colors apart.