What is "eucheuma speciosum"

jelly \jel"ly\, n.; pl. Jellies. [ Formerly gelly, gely, F. gel['e]e jelly, frost, fr. geler to freeze. L. gelare; akin to gelu frost. See Gelid.]

1. Anything brought to a gelatinous condition; a viscous, translucent substance in a condition between liquid and solid; a stiffened solution of gelatin, gum, or the like.

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.

   Jelly plant (Bot.), Australian name of an edible seaweed ( Eucheuma speciosum), from which an excellent jelly is made.
   --J. Smith.

   Jelly powder, an explosive, composed of nitroglycerin and collodion cotton; -- so called from its resemblance to calf's-foot jelly.