a particle of soot; sooty matter.
a black or dirty mark; smudge.
indecent language or publications; obscenity.
a disease of plants, especially cereal grasses, characterized by the conversion of affected parts into black, powdery masses of spores, caused by fungi of the order Ustilaginales.
a fungus causing this disease.
to soil or smudge.
to become affected with smut, as a plant.
- an·ti·smut, adjective
- un·smut·ted, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for smut
a small dark smudge or stain, esp one caused by soot
a speck of soot or dirt
something obscene or indecent
any of various fungal diseases of flowering plants, esp cereals, in which black sooty masses of spores cover the affected parts
any parasitic basidiomycetous fungus of the order Ustilaginales that causes such a disease
angling a minute midge or other insect relished by trout
to mark or become marked or smudged, as with soot
to affect (grain) or (of grain) to be affected with smut
(tr) to remove smut from (grain)
(tr) to make obscene
(intr) to emit soot or smut
(intr) angling (of trout) to feed voraciously on smuts
- smutty, adjective
- smuttily, adverb
- smuttiness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for smut
Any of various bacidiomycete fungi that are parasitic on plants and are distinguished by the black, powdery masses of spores that appear as sooty smudges on the affected plant parts. Smuts are parasitic chiefly on cereal grasses like corn and wheat and can cause enormous damage to crops.
Any of the various plant diseases caused by smuts, such as corn smut.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.