• WordNet 3.6
    • adj anatropous (of a plant ovule) completely inverted; turned back 180 degrees on its stalk
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Webster's Revised Unabridged Dictionary
    • a Anatropous (Bot) Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous.
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Century Dictionary and Cyclopedia
    • anatropous Inverted: in botany, applied to the reversed ovule, having the hilum close to the micropyle, and the chalaza at the opposite end. An equivalent form is anatropal.
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Webster's Revised Unabridged Dictionary
Gr. up + to turn


In literature:

Seed suspended, anatropous, supplied with endosperm.
"Seeds of Michigan Weeds" by W. J. (William James) Beal
RHAPHE, the line or ridge which runs from the hilum to the chalaza in anatropous and amphitropous seeds.
"The Elements of Botany" by Asa Gray
In other anatropal seeds the radicle is inferior.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3" by Various
Seeds few or several, anatropous, with albumen.
"The Manual of the Botany of the Northern United States" by Asa Gray