Side effect.
An intended effect is something that will effect something.
Generally speaking, any medical action which was intended to be helpful can instead lead to a complication or complications.
The turning effect, caused from force, is called The moment of a force.
abrasion
A paradoxical effect is one that is the opposite of that which was therapeutically intended.
wave pools
The Coriolis effect
Coriolis effect
An effect is the consequence of an action. Example sentences: Ice's intended effect on a sprained ankle is to reduce swelling. Medications can have the effect of curing illness, such as an antibiotic, or relieving the symptoms of illness, such as aspirin. Some medications have unintended negative effects called side effects. NOTE: The meaning of "effect" is quite different than the meaning of "affect".
greenhouse effect
The greenhouse effect caused by the burning of fossil fuels (coal, oil and natural gas), which releases carbon dioxide, is called the enhanced (or accelerated) greenhouse effect. This is causing global warminq, which is dangerous.
The change in frequency is caused by the Doppler Effect