IPA: /ˈfiːdstɒk/
KK: /fidstɑk/
A raw material that is used in an industrial process or supplied to a machine for production.
The factory uses corn as feedstock to produce biofuels.
Feedstock → It is formed from "feed" (from Old English "fēdan", meaning to provide food) and "stock" (from Old English "stoc", meaning a supply or store). The word "feedstock" refers to a material that is supplied for processing or production, particularly in manufacturing or energy production.
Think of 'providing food' ('feed') as a way to describe a 'supply' ('stock') of materials used for production.