noun
reaper
REE-per/ˈriːpər/
A person or machine that harvests crops by cutting them.
The reaper cuts ripe wheat with a sickle and gathers the stalks.

Etymology
Reap plus the agent suffix names the worker who cuts grain. The same name was later applied to a machine performing that harvesting work.
In context
We use a team of Percherons to pull the reaper. They pull the machine, and as they're pulling it's gonna cut the wheat down.
More examples
- The farmer uses a mechanical reaper to cut the barley.
- Before machines, reapers worked through the fields with sickles.
- A broken blade brings the reaper to a stop.
Forms
reaper · reapers
reap verb — To cut and gather ripe crops.
Similar words
- harvester
- Can gather many crops, not necessarily by cutting them.
- mower
- Cuts grass or crops without necessarily gathering a harvest.