workaholic

English Thesaurus

1. person with a compulsive need to work (noun.person)

hypernym	:	compulsive,
definition	:	a person with a compulsive disposition; someone who feels compelled to do certain things (noun.person)

domain usage	:	blend, portmanteau, portmanteau word,
definition	:	a new word formed by joining two others and combining their meanings (noun.communication)