loment n : pods constricted between seeds and breaking apart when ripe into one-seed segments

A loment is a type of modified legume that breaks apart at constrictions occurring between the segments of the seeds. Being a legume, it is dry at maturity and is dehiscent, meaning that it will split open at maturity.

Tick trefoil (Desmodium) and sweet vetch (Hedysarum) are two genera that exhibit this fruit type, which is found particularly in the Hedysareae tribe of the family Fabaceae, with the exception of the peanut.