/ Dictionary / Index S sequoia: Meaning and Definition of Find definitions for: se•quoi•a Pronunciation: (si-kwoi'u), [key] — n. either of two large coniferous trees of California, Sequoiadendron giganteum or Sequoia sempervirens, both having reddish bark and reaching heights of more than 300 ft. (91 m). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sequoia (Thesaurus) sequin Sequoia National Park Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language