rigol or rigoll /rigˈəl/

1. A gutter or water channel
2. A groove, esp an encircling groove
3. A circlet (Shakespeare)

• acrosomes
• acrospire
• acrospires
• across
• across lots
• across the board
• across-the-board
• across-the-table
• across the tracks
• across the way
• acrostic
• acrostically
• acrostics
• acroter
• acroteria
• acroterial
• acroterion
• acroterium
• acrotism
• acrotisms
• acrylaldehyde
• acrylamide
• acrylamide gel electrophoresis
• acrylamides
• acrylic