Pla-cĕn'ti-fōrm, a.
a. [Lat. placenta and forma, form.] (Bot.) Having the shape of a placenta or circular thickened disk, depressed on both sides about the middle. Henslow.
a. [Lat. placenta and forma, form.] (Bot.) Having the shape of a placenta or circular thickened disk, depressed on both sides about the middle. Henslow.