/ Dictionary / Index S subcolumnar: Meaning and Definition of Find definitions for: sub•co•lum•nar Pronunciation: (sub"ku-lum'nur), [key] — adj. almost or imperfectly columnar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subclinical subcommittee Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language