D defs.my
Entry 1 sense Webster, 1913

Orthotropal

· Or·thot·ro·pal · IPA
01 a. Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.
  1. 1.
    Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.(Bot.)