Origin of middle-sized
First recorded in 1625–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for middle-sized
Judging by the media coverage, one might as well think that a middle-sized kingdom has just changed its monarch.Pakistan’s Change of Guard and General Ashfaq Kayani’s Legacy
December 2, 2013
Then they stopped at Middle-Sized Pumpkin, but that was too flat.
Then she sat down in the chair of the Middle-Sized Bear, but that was too soft.
Then she tasted the porridge of the Middle-Sized Bear, but that was too cold.
This is what all the big-sized, little-sized, middle-sized monkeys did.
There were big monkeys and little monkeys and middle-sized monkeys.