We found 3 dictionaries that define the word visual purples:

General (2 matching dictionaries)

1. visual purples: Merriam-Webster
2. visual purples: Collins English Dictionary

Medicine (1 matching dictionary)

3. visual purples: Merriam-Webster Medical Dictionary

(Note: See visual_purple as well.)

Definitions from Wiktionary (visual purple) ▸ noun:  The pigment rhodopsin. ▸ Also see visual_purple ▸ Words similar to visual purples ▸ Usage examples for visual purples ▸ Idioms related to visual purples ▸ Wikipedia articles (New!) ▸ Words that often appear near visual purples ▸ Rhymes of visual purples ▸ Invented words related to visual purples