— plical , adj.
/pluy"keuh/ , n. , pl. plicae /pluy"see, -kee/ .
1. Zool. , Anat. a fold or folding.
2. Also called plica polonica /peuh lon"i keuh/ . Pathol. a matted, filthy condition of the hair, caused by disease, vermin, etc.
3. (in medieval music) a vertical mark attached to a neume, standing for an interpolated melodic ornament.
[ 1675-85; plicare to fold, PLY 2 ]