an engineer or scientist concerned with the design, operation, or launching of rockets
rocketeer in American English
(ˌrɑkəˈtɪr)
noun
an expert in rocketry
rocketeer in American English
(ˌrɑkɪˈtɪər)
noun
1.
a person who discharges, rides in, or pilots a rocket
2.
a technician or scientist whose work pertains to rocketry
Also: rocketer
Word origin
[1825–35; rocket1 + -eer]This word is first recorded in the period 1825–35. Other words that entered Englishat around the same time include: cross section, electrolyte, panda, relativity, runway-eer is a noun-forming suffix occurring originally in loanwords from French (buccaneer; mutineer; pioneer) and productive in the formation of English nouns denoting persons who produce, handle,or are otherwise significantly associated with the referent of the base word (auctioneer; engineer; mountaineer; pamphleteer); now frequently pejorative (profiteer; racketeer)