hot bed

American  

noun

Metalworking.

1. an area having rails or rolls on which rolled pieces are laid to cool.

---

Etymology

Origin of hot bed

First recorded in 1620–30

Example Sentences

Seattle is not a hot bed of autonomous vehicle testing, but it has seen its fair share of robot cars.

From The Verge • Oct. 18, 2021

In the eastern state of Saxony, which has become a hot bed of protests, the rates of infection are higher than anywhere else in the country.

From Washington Times • Dec. 20, 2020

It's so interesting to me because California was also a hot bed of a lot of creative energy and yet, they seemed really alienated in Los Angeles.

From Salon • Nov. 23, 2018

Montana, for one, isn’t known as a hot bed of football talent.

From Seattle Times • Oct. 21, 2016

His hot bed smelled like a mushroom cellar.

From "Slaughterhouse-Five" by Kurt Vonnegut