APL

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APL^¹

Where it comes from

(computer language): From the book A Programming Language (1962).

noun APLs

abbreviation, initialism, uncountable Initialism of acute promyelocytic leukemia The disease that stood at the pivotal crossroads of oncology was yet another rare variant of leukemia called acute promyelocytic leukemia—APL.
Similar: APML
abbreviation, countable, initialism Initialism of assistant patrol leader

proper noun

abbreviation, initialism Initialism of Applied Physics Laboratory, a Johns Hopkins University laboratory.
US, abbreviation, initialism Initialism of Applied Physics Laboratory, at the University of Washington.
An early programming language using mathematically derived symbols for many of its operations. The language APL presents a number of novel problems for a compiler writer: weak variable typing, run time changes in variable shape, and a host of primitive operations, among others.
abbreviation, initialism Initialism of Adaptive Public License
abbreviation, initialism Initialism of AROS Public License

aPL^²

noun aPLs

abbreviation Abbreviation of antiphospholipid antibody

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MLA

"APL." Wiktionary, via Micwyn, micwyn.com/word/apl. Accessed 6 Nov. 2026.

APA

APL. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/apl

Chicago

"APL." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/apl.

BibTeX

@misc{apl_2026,
  title = {APL},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/apl},
  urldate = {2026-11-06}
}

APL