The Coriolis effect is defined as how a moving object seems to veer toward the right in the Northern hemisphere and left in the Southern hemisphere.
An example of the Coriolis effect is hurricane winds turning left in the Northern hemisphere.
the apparent deflection of a moving mass of water, air, etc. to the right in the Northern Hemisphere and to the left in the Southern Hemisphere
Origin of Coriolis effectsee Coriolis force
The observed effect of the Coriolis force, especially the deflection of an object moving above the earth, rightward in the Northern Hemisphere and leftward in the Southern Hemisphere.