marginicidal

As a noun terms

is .

As an adjective marginicidal is

(of fruits) dehiscent by the separation of united carpels.

As a noun carpel

is one of the individual female reproductive organs in a flower. A carpel is composed of an ovary, a style, and a stigma, although some flowers have carpels without a distinct style. In origin, carpels are leaves (megasporophylls) that have evolved to enclose the ovules. The term pistil is sometimes used to refer to a single carpel or to several carpels fused together.

As an adjective marginicidal is

dehiscent by the separation of united carpels.

As adjectives the difference between dehiscent and marginicidal

is that dehiscent is (medicine) of or pertaining to dehiscence, ie, a rupture, as with a surgical wound opening up, often with a flow of serous fluid while marginicidal is (of fruits) dehiscent by the separation of united carpels.