/ Dictionary / Index D dental hygienist: Meaning and Definition of Find definitions for: den'tal hygien'ist Pronunciation: [key] a person who is trained and licensed to clean teeth, take dental x-rays, and provide related dental services and care, usually under the supervision of a dentist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dental hygiene dentalium Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language