harvesting 1. a powered vehicle mounted on crawler tracks or wheels used for skidding or hauling —note tracklaying or crawler tractors are often fitted with various devices on the front end, such as (a) a curved, straight-bottomed blade for pushing soil, e.g., in road making, (b) a raker blade with tines on the bottom for site preparation, or (c) a KG blade for stump removal —synonym crawler, bulldozer 2. a short-wheelbase truck used to haul trailersThis definition last updated 10/01/2008