Noun
alginate (plural alginates)
(biochemistry) Any salt or ester of alginic acid.
Organic acid matrices became the basis for engineering such organs and tissues as skin, bone, cartilage, tendon, muscle (striated, smooth and cardiac), small intestine, etc. Collagen, chitosan and alginate have a special place among biomatrix materials. Source: Internet
To re-mold that, because your alginate mold that you made in the first place is only good for one copy, and then it falls apart. Source: Internet