ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
1. : an instrument to show the time of day by the shadow of a gnomon on a usually horizontal plate or on a cylindrical surface
2.
[so called from the fact that its leaves incline up to 90 degrees to follow the sun]
: a common lupine ( Lupinus perennis ) of the eastern United States