1) Sculpture material 2) Synthetic 
Plasticine, a brand of modelling clay, is a putty-like modelling material made from calcium salts, petroleum jelly and aliphatic acids. The name is a registered trademark of Flair Leisure Products plc. Plasticine is used extensively for children`s play, but also as a modelling medium for more formal or permanent structures. == History == Plastici....
Trademark for an oil-based plastic material used in modelling. It was invented in 1897 for art students and is also used by architects and engineers; the earliest spacesuits...
A soft, pliable, synthetic, clay-like material. Often used by children and in schools. Non-hardening.
see Modelling clay
Plasticine is a trademarked name for a material which is known in the US as 'modeling clay'. Plasticine was formulated by art teacher William Harbutt in 1897 because he wanted a non-drying clay for use by his sculpture students. Thus it is non drying by design and as it is also flammable, attempts to harden it by heating can be dangerous. Don't try...
[n] - (trademark) a synthetic material resembling clay but remaining soft
Modelling clay.
noun a synthetic material resembling clay but remaining soft; used as a substitute for clay or wax in modeling (especially in schools)