Breadcrumb Home > Dictionary > Index E efficiency expert: Meaning and Definition of Find definitions for: effi'ciency ex"pert Pronunciation: [key] a person who studies the methods, procedures, and job characteristics of a business or factory with the object of devising ways to increase the efficiency of equipment and personnel. Also calledCf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. efficiency apartment efficient TrendingHere are the facts and trivia that people are buzzing about. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: irascible Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language