APL

See also: apl

English

Etymology

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

Noun

APL (countable and uncountable, plural APLs)

1. (oncology, hematology, uncountable) Initialism of acute promyelocytic leukemia.

   Synonym: APML

   • 2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 407:

     The disease that stood at the pivotal crossroads of oncology was yet another rare variant of leukemia called acute promyelocytic leukemia—APL.

2. (scouting, countable) Initialism of assistant patrol leader.

Proper noun

APL

1. (astronomy, NASA, physics) Initialism of Applied Physics Laboratory (a Johns Hopkins University laboratory)
2. (physics, US) Initialism of Applied Physics Laboratory (at the University of Washington)
3. (computer languages) An early programming language using mathematically derived symbols for many of its operations.
   • 1988, Timothy Budd, An APL Compiler, Springer, →ISBN, page 1:

     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.

4. Initialism of Adaptive Public License.
5. Initialism of AROS Public License.

Derived terms

• APLer

 

Further reading

• APL (programming language) on Wikipedia.Wikipedia

Anagrams

• ALP, LPA, PAL, PLA, Pal, Pla, alp, lap, pal