assembler

[uh-sem-bler] /əˈsɛm blər/
noun
1.
a person or thing that assembles.
2.
Computers.
  1. Also called assembly routine. a language processor that translates symbolic assembly language into equivalent machine language.
  2. assembly language.
Origin
1625-35; assemble + -er1
British Dictionary definitions for assemblers

assembler

/əˈsɛmblə/
noun
1.
a person or thing that assembles See compiler (sense 2)
2.
a type of computer program that converts a program written in assembly language into machine code Compare compiler (sense 2)
3.
another name for assembly language