Positive Charge / Anode
Sometimes drawn as a basket it is also originally drawn as a downward semicircle.
This hieroglyph is the direct opposite of the upward semicircle hieroglyph meaning negative charge or cathode.
The hieroglyph is used to describe the Sun or the Stars as the anode or the ionosphere as the positive electrode.
A cation (+), from the Greek word "down", is an ion with fewer electrons than protons, giving it a positive charge, like proton.
For this reason the downward semicircle means Positive Charge or Anode.