1. Smut fungus causing blackish blisters on scales and leaves of onions; especially destructive to seedlings
   - onion smut

Type of: smut, smut fungus

• liner
• liner train
• linesman
• lineup
• hub-and-spoke
• hub-and-spoke system
• Hubbard
• hubbard squash
• Hubble
• Hubble constant
• Hubble law
• Hubble parameter
• Hubble's constant
• Hubble's law
• Hubble's parameter
• hubble-bubble
• hubbly-bubbly
• hubbub
• hubby
• hubcap
• Hubel
• hubris
• hubristic
• huck
• Huck Finn