2. The juice of fruits or meats boiled with sugar to an elastic consistence; as, currant jelly; calf's-foot jelly. Jelly bag, a bag through which the material for jelly is strained. Jelly mold, a mold for forming jelly in ornamental shapes.
(Science: botany) jelly plant, Australian name of an edible seaweed (Eucheuma speciosum), from which an excellent jelly is made. Jelly powder, an explosive, composed of nitroglycerin and collodion cotton; so called from its resemblance to calf's-foot jelly.