frazil /frazˈil or frāˈzil/ (N American)

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

• darken someone's door
• darker
• darkest
• darkey
• darkeys
• darkfield microscope
• darkfield microscopes
• dark glasses
• dark-ground illumination
• dark horse
• dark horses
• dark-house
• dark-houses
• darkie
• darkies
• darkish
• dark lantern
• dark lanterns
• darkle
• darkled
• darkles
• darkling
• darkling beetle
• darkling beetles
• darklings