• (n.) A laborer who is employed to load or unload vessels when in harbor. • (n.) The European eelpout; -- called also lumpen. • (n.) One who lumps. Found on http://thinkexist.com/dictionary/meaning/lumper/
a day laborer employed to handle cargo, as fish or timber. · a taxonomist who believes that classifications should emphasize similarities among organisms and therefore favors large, inclusive taxa (opposed to splitter). Found on https://www.infoplease.com/dictionary/lumper