noun
reduction
rih-DUK-shun/rɪˈdʌkʃn/
A decrease in amount or extent.
The second bowl shows a substantial reduction in the quantity of grapes.

Etymology
The original image was “leading back,” especially restoring something to a former state. The related sense of bringing something to a lower condition connects this with making it smaller or less.
In context
there is also an increase in procoagulant factors and a reduction in anti-coagulants which generates a coagulopathy
More examples
- The store offers price reductions on winter coats.
- The redesign achieves a reduction in the number of steps.
- A slow reduction thickens the sauce as water evaporates.
Forms
reduction · reductions
reduce verb — To make something smaller, less, or simpler.