assemblage

[uh-sem-blij; for 3, 4 also French a-sahn-blazh] /əˈsɛm blɪdʒ; for 3, 4 also French a sɑ̃ˈblaʒ/
noun
1.
a group of persons or things gathered or collected; an assembly; collection; aggregate.
2.
the act of assembling; state of being assembled.
3.
Fine Arts.
  1. a sculptural technique of organizing or composing into a unified whole a group of unrelated and often fragmentary or discarded objects.
  2. a work of art produced by this technique.
    Compare collage, found object, ready-made (def 4).
4.
Archaeology. the aggregate of artifacts and other remains found on a site, considered as material evidence in support of a theory concerning the culture or cultures inhabiting it.
Origin
1695-1705; < French; see assemble, -age
Related forms
reassemblage, noun
subassemblage, noun
Can be confused
assemblage, assembly.
British Dictionary definitions for assemblage

assemblage

/əˈsɛmblɪdʒ/
noun
1.
a number of things or persons assembled together; collection; assembly
2.
a list of dishes served at a meal or the dishes themselves
3.
the act or process of assembling or the state of being assembled
4.
(ˌæsəmˈblɑːʒ). a three-dimensional work of art that combines various objects into an integrated whole
Word Origin and History for assemblage
n.

c.1704, from French assemblage "gathering, assemblage," from assembler (see assemble). Earlier English words in the same sense include assemblement, assemblance (both late 15c.).

assemblage in Science
assemblage
  (ə-sěm'blĭj)   
A collection of artifacts from a single datable component of an archaeological site. Depending on the site and culture, an assemblage may be associated with a single limited activity, as with stone tools found at a butchering site, or may reflect a broad range of cultural life, as with artifacts found in a communal living site.