1. Of or pertaining to the region of partial shadow around an umbra

See also: penumbra

Encyclopedia: Penumbral

• to the limit
• to the lowest degree
• to the point
• to the south
• to windward
• to wit
• to-do
• toad
• toad frog
• toad lily
• toad rush
• toad-in-the-hole
• toadfish
• toadflax
• toadshade
• toadstool
• toady
• toadyish
• toast
• toast mistress
• toasted
• toaster
• toaster oven
• toastie
• toasting