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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 or·thot·ro·pous /ɔrˈθɑtrəpəs/
 直生的

From: Webster's Revised Unabridged Dictionary (1913)

 Or·thot·ro·pal Or·thot·ro·pous a.  Bot. Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.
 Note: ☞ This word has also been used (but improperly) to describe any embryo whose radicle points towards, or is next to, the hilum.
 ◄ ►

From: WordNet (r) 2.0

 orthotropous
      adj : (of a plant ovule) completely straight with the micropyle at
            the apex [ant: campylotropous]