/ Dictionary / Index I Isolette: Meaning and Definition of Find definitions for: I•so•lette Pronunciation: (ī"su-let'), [key] — Trademark. Trademark. a brand of incubator for premature or other newborn infants, providing controlled temperature, humidity, and oxygen levels and having armholes through which the infant can be reached with minimum disturbance to the controlled environment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isolecithal isoleucine Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language