Definify.com
Webster 1913 Edition
Horse Guards
Horse′ Guardsˊ
(hôrs′gärdzˊ)
. (Mil.)
A body of cavalry so called; esp., a British regiment, called the Royal Horse Guards, which furnishes guards of state for the sovereign.
The Horse Guards
, a name given to the former headquarters of the commander in chief of the British army, at Whitehall in London.
Horsehair worm
(Zool.)
, the hair worm or gordius.