/ Dictionary / Index T Tarmac: Meaning and Definition of Find definitions for: Tar•mac Pronunciation: (tär'mak), [key] —n. (l.c.) a road, airport runway, parking area, etc., paved with Tarmac, tarmacadam, or a layer of tar. (l.c.) a layer or covering of Tarmac, tarmacadam, or tar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tarmac (Thesaurus) Tarlton tarmacadam Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language