from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A plastid that contains pigments other than chlorophyll, usually yellow or orange carotenoids.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology Any plastid in which a pigment is synthesized or stored

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun plastid containing pigments other than chlorophyll usually yellow or orange carotenoids


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