/ Dictionary / Index C culm: Meaning and Definition of Find definitions for: culm Pronunciation: (kulm), [key] — n. coal dust; slack. anthracite, esp. of inferior grade. culm Pronunciation: (kulm), [key] — n. a stem or stalk, esp. the jointed and usually hollow stem of grasses. —v.i. to grow or develop into a culm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: culm (Thesaurus) cully culmicolous Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language