rigol or rigoll /rigˈəl/

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

• stereopsis
• stereopticon
• stereopticons
• stereoptics
• stereos
• stereoscope
• stereoscopes
• stereoscopic
• stereoscopical
• stereoscopically
• stereoscopies
• stereoscopist
• stereoscopists
• stereoscopy
• stereosonic
• stereospecific
• stereotactic
• stereotactical
• stereotaxes
• stereotaxia
• stereotaxias
• stereotaxic
• stereotaxis
• stereotomies
• stereotomy