marginicidal

Century Dictionary and Cyclopedia

1. In botany, a term descriptive of that mode of dehiscence in which the carpels separate along their external line of junction, not, however, splitting the septa or partitions, as in septicidal dehiscence, but breaking away from them.

Wiktionary

1. adj. of fruits dehiscent by the separation of united carpels.

GNU Webster's 1913

1. adj. (Bot.) Dehiscent by the separation of united carpels; -- said of fruits.