symbolism

Short definition from Wiktionary

Noun

1. 1
   Representation of a concept through symbols or underlying meanings of objects or qualities.
2. 2
   An art movement originating in late 19th-century France and Belgium, seeking to represent absolute truths symbolically through language and metaphorical images, mainly as a reaction against naturalism and realism.
3. 3
   A combining together of parts or ingredients.