plumber
n.— «I was a flight engineer for two carriers while I waited for a flying position, and wore three stripes at both airlines. The slang aviation term “plumber” refers to a flight engineer.» —“Scrambled eggs on my hat” by Meryl Getline USA Today June 19, 2006. (source: Double-Tongued Dictionary)
Further reading
In the 15th century, the word respair meant “to have hope again.” Although this word fell out of use, it’s among dozens collected in a new book of soothing vocabulary for troubled times. Plus, baseball slang: If a batter...
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...
Plumber is also a term used to refer to chemical engineers by chemists..