Definition of violaxanthin in English:

violaxanthin

noun

Biochemistry
  • A xanthophyll pigment widely distributed in plant chloroplasts, where it is involved in biochemical responses to excessive light levels, and present as a yellow colouring in flowers such as daffodils and yellow pansies.

Origin

1930s; earliest use found in Chemical Abstracts. From viola + xanthin, after German Viola-xanthin.

Pronunciation

violaxanthin

/ˌvʌɪələˈzanθɪn/