breeding ground

See more synonyms for breeding ground on Thesaurus.com
noun
  1. a place where animals breed or to which they return to breed.
  2. an environment suitable for or fostering the development of an idea, thing, etc.: a breeding ground for violence.

Origin of breeding ground

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for breeding ground

hatchery, birthplace, rookery

Examples from the Web for breeding ground

Historical Examples of breeding ground