gyrus /jīˈrəs/ (medicine and zoology)

1. A convoluted ridge between two grooves
2. A convolution on the surface of the brain

• topes
• top flight
• top-flight
• topfull
• topgallant
• topgallants
• top gear
• top gears
• tophaceous
• top hamper
• top hampers
• top hat
• top hats
• top-heavily
• top-heaviness
• top-heavy
• Tophet
• tophi
• top-hole
• tophus
• topi
• topiarian
• topiaries
• topiarist
• topiarists