orthotropous
American Heritage Dictionary:
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or·thot·ro·pous
(ôr-thŏt'rə-pəs) 
adj. Botany
Growing straight, so that the micropyle is at the end opposite the stalk. Used of an ovule.
adj. Botany
Growing straight, so that the micropyle is at the end opposite the stalk. Used of an ovule.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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