/ Dictionary / Index A APL: Meaning and Definition of Find definitions for: APL Pronunciation: [key] — Computers. Computers. an interactive programming language having concise notations for operations on entire arrays of numbers and characters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. apivorous aplacental Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language