- a bed of earth covered with glass and heated by manure, electricity, etc. for forcing plants
- any place that fosters rapid growth or extensive activity
- An environment conducive to vigorous growth or development, especially of something undesirable: a hotbed of intrigue.
- A bed of soil that is covered with glass, fiberglass, or plastic, is heated with fermenting manure or by electricity, and is used for germinating seeds or protecting tender plants.
- a low bed of earth covered with glass, and heated with rotting manure; used for the germination of seeds and the growth of tender plants. A hotbed works as a miniature hothouse, i.e. greenhouse.
- (by extension) an environment that is ideal for the growth or development of something, especially of something undesirable
- Bedding plants thrive best in a light loam, liberally manured with thoroughly rotten dung from an old hotbed or thoroughly decomposed cow droppings and leaf-mould.
- Sow stocks, dahlias and a few tender and half-hardy annuals, on a slight hotbed, or tin pots.
- - Sow small salading and radishes in the first week, and lettuces in frames on a shallow hotbed for planting out in spring.
- Oliver was born on the 25th of April 1599, was educated under Dr Thomas Beard, a fervent puritan, at the free school at Huntingdon, and on the 23rd of April 1616 matriculated as a fellow-commoner at Sidney Sussex College, Cambridge, then a hotbed of puritanism, subsequently studying law in London.
- One of the causes of ill-feeling was the university question; the Austrian government had persistently refused to create an Italian university for its Italian subjects, fearing lest it should become a hotbed of irredentism, the Italianspeaking students being thus obliged to attend the GermanAustrian universities.