definition of
orb

[1] #1 orb n. [eyeball] the ball-shaped capsule containing the vertebrate eye. wn

[2] #2 orb v. [orbit, revolve] move in an orbit; "The moon orbits around the Earth"; "The planets are orbiting the sun"; "electrons orbit the nucleus". wn

[3] #3 orb n. [ball, globe] an object with a spherical shape; "a ball of fire". wn