frazil /frazˈil or frāˈzil/ (N American)

1. Ground-ice
2. Ice in small spikes and plates in rapid streams

• undercut
• undercuts
• undercutting
• underdamper
• underdampers
• underdeck
• underdecks
• underdevelop
• underdeveloped
• underdeveloping
• underdevelopment
• underdevelops
• underdid
• underdo
• underdoer
• underdoers
• underdoes
• underdog
• underdogs
• underdoing
• underdone
• underdrain
• underdrained
• underdraining
• underdrains