Definition of "assembler"

assembler

/əˈsɛmb(ə)lɚ/

noun
countable and uncountable, plural assemblers
1. (programming, countable) A program that reads source code written in assembly language and produces executable machine code, possibly together with information needed by linkers, debuggers and other tools.
  Quotations
  The system includes an 8080 and a Z80 assembler, a Tektronix format downloader and other utilities.
  1982, InfoWorld, volume 4, number 10, page 35
2. (computer languages, informal, chiefly uncountable) Assembly language.
3. (countable) One who assembles items.
  Quotations
  Our father worked as an assembler in a radio factory that would go out of business in the early 1960s, […]
  2014, Howard Waldrop, Things Will Never Be the Same: A Howard Waldrop Reader
4. (nanotechnology, countable) A nanodevice capable of assembling nanodevices, possibly including copies of itself, according to a plan.