rigol or rigoll /rigˈəl/

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

• electrocutions
• electrode
• electrodeposition
• electrodes
• electrodynamic
• electrodynamics
• electrodynamometer
• electrodynamometers
• electroencephalogram
• electroencephalograms
• macroglobulins
• macroinstruction
• macroinstructions
• Macrolepidoptera
• macrolide
• macrolides
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• macrology
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• macromolecular
• macromolecule
• macromolecules
• macron
• macrons
• macronutrient