APL

plural APLs

1. abbreviationinitialismuncountablehematologyInitialism 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.

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

   Synonyms: APML

2. abbreviationcountableinitialismscoutingInitialism of assistant patrol leader.

1. abbreviationinitialismUS space programastronomyInitialism of Applied Physics Laboratory, a Johns Hopkins University laboratory.
2. USabbreviationinitialismnatural sciencesInitialism of Applied Physics Laboratory, at the University of Washington.
3. computer languagesAn 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.

   1988, Timothy Budd, An APL Compiler, Springer, →ISBN, page 1

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

plural aPLs

1. abbreviationimmunologyAbbreviation of antiphospholipid antibody.