Lexic.us

Definition of Carotenoid

1. Noun. Any of a class of highly unsaturated yellow to red pigments occurring in plants and animals.

Definition of Carotenoid

1. Noun. (organic chemistry) Any of a class of yellow to red plant pigments including the carotenes and xanthophylls. ¹

2. Adjective. (organic chemistry) Of, or relating to such a class of pigments. ¹

¹ Source: wiktionary.com

Definition of Carotenoid

1. [n -S]

Medical Definition of Carotenoid

1. Accessory lipophilic photosynthetic pigments in plants and bacteria, including carotenes and xanthophylls, red, orange or yellow, with broad absorption peaks at 450-480nm. Act as secondary light harvesting pigments, passing energy to chlorophyll and as protective agents, preventing photoxidation of chlorophyll. Found in chloroplasts and also in plastids in some nonphotosynthetic tissues, for example carrot root. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Carotenoid

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