Technically the description warmblood implies a warmblood horse is a cross between cold-blooded breeds (native ponies, Irish draught etc) and a hot-blooded horse - the thoroughbred and Arab.
The Irish Sport Horse, which is a cross between an Irish draught and a thoroughbred, is a well-known example.
However it's not as simple as that - although today's warmbloods are more than likely to have a bit of blood from both hot-blooded horses and cold-blooded horse in them. Warmbloods are a type of horse that originated on the continent, which were were bred and developed for performance and movement - particularly dressage and show jumping.
Warmbloods are usually described as middleweight - thoroughbreds and Arabs are lightweight, while draught horses are heavyweight.
Warmbloods are meant to have the inherited the best characteristics from both hot and cold-blooded horses and are known for their big jump, extravagant paces and calm temperament.
There are a number of warmblood breeds including Hanoverian, Dutch warmblood, Trakehner, Holsteiner and Belgium warmblood.
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Main image: Olympic gold medalist, Nick Skelton riding the Dutch warmblood stallion Big Star during Rio 2016. Getty Images