Technical definition: belonging or pertaining to an art, science, or the like.. See examples of TECHNICAL used in a sentence. TECHNICAL definition: 1. relating to the knowledge, machines, or methods used in science and industry: 2. relating to…. Learn more. Master the word " TECHNICAL " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. 6 meanings: 1. of, relating to, or specializing in industrial, practical, or mechanical arts and applied sciences 2. skilled in.... Click for more definitions.