In sporting, a boxer or jockey of intermediate weight; one who is between light-weight and heavy-weight.(noun)
The Century Dictionary (Public Domain)
Use "middle-weight" in a sentence
"With Old Mill's talented middle-weight wrestlers, points from Green could significantly aid the Seahawks in knocking off the Patriots again."
"These middle-weight rifles like the 375, 9. 3x62, 35 Whelen, 338 Federal up-through 338 Win are outstanding deer and elk cartridges."
"Her Brooklyn-born-and-bred father — middle-weight boxing champion, artist, plumber, a builder of the Empire State Building, laundry owner, and building contractor — shared his broad, eclectic worldview with her."