plica(n = noun.body) fold - a folded part (as in skin or muscle);
is a kind of anatomical structure, bodily structure, body structure, complex body part, structure
has particulars: epicanthic fold, epicanthus, plica vocalis, vocal band, vocal cord, vocal fold, ruga, tentorium
1. A disease of the hair (Plica polonica), in which it becomes twisted and matted together. The disease is of Polish origin, and is hence called also
2. A diseased state in plants in which there is an excessive development of small entangled twigs, instead of ordinary branches. [1913 Webster]
3. The bend of the wing of a bird. [1913 Webster]