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junior welterweight

noun
  1. a boxer weighing up to 140 pounds (63 kg), between lightweight and welterweight.
Also called super lightweight.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for junior welterweight

junior welterweight

noun
    1. a professional boxer weighing 135–140 pounds (61–63.5 kg)
    2. (as modifier)a junior-welterweight fight Compare light welterweight
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012