Answer: He is a cartoonist, an inverntor, and the only person ever to be listed in the Merriam-Webster's Dictionary as an adjective
Explanation: RUBE GOLDBERG (1883-1970) was a cartoonist, an inventor, and the only person ever to be listed in Merriam-Webster's Dictionary as an adjective. Of the nearly 50,000 cartoons he drew in his lifetime, Rube is best known for the zany contraptions of Professor Butts.