| Noun | 1. | smut - a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and inkatomic number 6, carbon, C - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds | |
| 2. | smut - destructive diseases of plants (especially cereal grasses) caused by fungi that produce black powdery masses of sporesloose smut - disease of grains; the entire head is a dusty mass of spores stinking smut, bunt - disease of wheat characterized by replacement of the grains with greasy masses of smelly smut spores flag smut - smut affecting leaves and stems of cereals and other grasses | |
| 3. | smut - any fungus of the order Ustilaginalesfungus - a parasitic plant lacking chlorophyll and leaves and true stems and roots and reproducing by spores covered smut - a smut fungus causing a smut disease of grains in which the spore masses are covered or held together by the grain membranes loose smut - a smut fungus of the genus Ustilago causing a smut disease of grains in which the entire head is transformed into a dusty mass of spores Tilletia caries, bunt - fungus that destroys kernels of wheat by replacing them with greasy masses of smelly spores onion smut, Urocystis cepulae - smut fungus causing blackish blisters on scales and leaves of onions; especially destructive to seedlings flag smut fungus - a smut fungus causing a smut in cereals and other grasses that chiefly affects leaves and stems and is characterized chains of sori within the plant tissue that later rupture releasing black masses of spores | |
| 4. | smut - creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire | |
| Verb | 1. | smut - make obscene; "This line in the play smuts the entire act"alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue" | |
| 2. | smut - stain with a dirty substance, such as sootstain - produce or leave stains; "Red wine stains the table cloth" | |
| 3. | smut - become affected with smut; "the corn smutted and could not be eaten"mildew, mold - become moldy; spoil due to humidity; "The furniture molded in the old house" | |
| 4. | smut - affect with smut or mildew, as of a crop such as corninfect, taint - contaminate with a disease or microorganism | |