plica

From Medieval Latin, from Latin plicare (“to fold”)

plica (countable and uncountable, plural plicas or plicae)

1. A fold or crease, especially of skin or other tissue.
2. Polish plait, plica polonica, or plica neuropatica: a disease of the hair in which it becomes twisted and matted together.

   (Can we find and add a quotation of Dunglison to this entry?)

3. (botany) A diseased state in plants in which there is an excessive development of small entangled twigs, instead of ordinary branches.
4. (zoology) The bend of the wing of a bird.
5. (music) A neume, in the form of a tail at the end of a ligature, indicating an additional note.

Borrowed from Latin plica, a derivative of plicō (“I fold”).

plica f (plural pliche)

1. (anatomy) plica, fold

• plicale

• piegare
• plico

plicā

1. second-person singular present active imperative of plicō

• plica in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)