when an ovule is inverted so that the micropyle faces the placenta (this is the most common ovule orientation in flowering plants); cf. amphitropous, campylotropous, orthotropous. Found on http://en.wikipedia.org/wiki/Glossary_of_botanical_terms
anatropous An ovule that is inverted and straight, with the micropyle next to the hilum and the radicle (portion of the embryo below the cotyledons that will form the roots, more properly called the caudicle) consequently inferior (lower or below). Found on http://www.wordinfo.info/words/index/info/view_unit/2192/
(of an ovule) inverted at an early stage of growth, so that the micropyle is turned toward the funicle and the embryonic root is at the opposite end. Found on https://www.infoplease.com/dictionary/anatropous