/veuh suy"keuh puy"sis, pis"is; veuh see"keuh pis"kis, ves"i keuh/ , Fine Arts.
an elliptical figure in pointed form, usually one made by the intersection of two arcs and used, esp. in early Christian art, as an emblem of Christ.
[ 1800-10; vesica piscis lit., bladder of a fish ]