Definitions

1. noun

A vessel, especially a large tank or container, used for fermenting a substance, such as beer or wine.

“The brewery used a large fermentor to age its craft beer.”

2. noun

A person or device that ferments a substance.

“The winemaker served as the chief fermentor in the production of their vintage.”

3. verb

To cause (a substance) to undergo fermentation.

“The yeast will fermentor the sugars in the grape juice to produce wine.”