noun
Meaning 1
A plane triangular graph on which are drawn all the colours that can be made by the additive mixing of red blue and green; these three primary colours are at the apices, while white is in the middle.
Definition source: English Wiktionary via Wiktextract
Usage: UK
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided