lumper vs splitter

lumper and splitter both are nouns.

Word	Noun	Adjective	Verb	Adverb
lumper	Yes	No	No	No
splitter	Yes	No	No	No

lumper (noun)	splitter (noun)
a taxonomist who classifies organisms into large groups on the basis of major characteristics	a taxonomist who classifies organisms into many groups on the basis of relatively minor characteristics
a laborer who loads and unloads vessels in a port	a worker who splits fish and removes the backbone
	a laborer who splits logs to build split-rail fences