green belt /ˈɡriːn bɛlt/ noun[before a noun]6 •(UK) An area of agricultural land around an urban area that is protected from large-scale building.The LCC [London County Council] would initiate the campaign for the Green Belt, which the men at the top of London Transport would support. — 2012 •A belt which is green in colour worn by a person who has achieved a certain (usually intermediate) level of skill in a martial art, especially judo or karate; also, the level of skill represented by this belt.He estimates it was around 1964 when the Japanese stylists of karate brought in the green belt to bridge the gap between white and brown. — 2011 •A strip of land with plants in a place which is otherwise bare. •A strip of land on which trees are planted to protect against desertification, soil erosion, etc. •A strip of land next to a building, open space, road, etc., with plants on it, intended for exercise or recreation. •A person who has earned the rank of green belt in a martial art.Develop a career progression ladder for black belts and green belts. — 2012 formsgreen belts