PL/1


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PL/1

n
(Computer Science) programming language 1: a high-level computer programming language designed for mathematical and scientific purposes
[C20: p(rogramming) l(anguage) 1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014