- Botany. (of an ovule) straight and symmetrical, with the chalaza at the evident base and the micropyle at the opposite extremity.
Origin of orthotropous
Examples from the Web for orthotropous
Historical Examples of orthotropous
Orthotropous ovule of Buckwheat: c, hilum and chalaza; f, orifice.
Fruit a kind of dry drupe, with a crustaceous or bony nut-shell, containing a large 4-lobed orthotropous seed.
Orthotropous or Straight, those which develop without curving or turning, as in Fig. 344.
- (of a plant ovule) growing straight during development so that the micropyle is at the apexCompare anatropous