quantasome


Also found in: Encyclopedia, Wikipedia.

quan·ta·some

 (kwŏn′tə-sōm′)
n.
One of numerous particles located on the thylakoid of a chloroplast, formerly considered to be the functional unit of photosynthesis.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.