onion smut

noun

A disease of the seedlings of the onion caused by the fungus Urocystis cepulae which causes black elongate blisters on the bulb and leaves of the plant.

Similar
Urocystis cepulae
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Meanings

nounonion smut (uncountable)
  1. uncountableA disease of the seedlings of the onion caused by the fungus Urocystis cepulae which causes black elongate blisters on the bulb and leaves of the plant.
  2. uncountableThe fungus Urocystis cepulae.

Synonyms & antonyms

nounsmut fungus causing blackish blisters on scales and leaves of onions; especially destructive to seedlings

Similar
Urocystis cepulae
Broader
smutsmut fungus

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Finnish sipulinnoki, sipulinnoki
  • sipulinnokidisease
  • sipulinnokifungus
Cite this entry
APA

onion smut. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/onion%20smut

MLA

“onion smut.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/onion%20smut. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “onion smut,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/onion%20smut.

Source: onion smut on Wiktionary, CC BY-SA 4.0.