Any place that features rapid, if not chaotic growth. MIT is a hotbed of advanced technical research.
Also can be any place with chaotic activity, especially trade or war.

Hot"bed` (?), n.

1. Gardening

A bed of earth heated by fermenting manure or other substances, and covered with glass, intended for raising early plants, or for nourishing exotics.


A place which favors rapid growth or development; as, a hotbed of sedition.


© Webster 1913.

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