Definition of "buckling"

Engineers decided not to use hydraulics, to ensure there was no twisting or buckling to the 80-tonne girder structure.

2021 July 14, “Network News: Network Rail engineers raise Machynlleth bridge”, in RAIL, number 935, page 27

If you do have extra milk, then by all means raise your extra bucklings and cull doelings for meat.

1994, Carla Emery, The Encyclopedia of Country Living, Ninth Edition, Sasquatch Books, page 715

The newborn doe kids destined to become habitual aborters (and the buckling that carries the trait) are above average in weight and have a very fine haircoat.

1994, Mary C. Smith and David M. Sherman, Goat Medicine, Blackwell Publishing, page 429

I milk the goats and put wethers (the castrated bucklings) in the freezer with ducks, chickens, rabbits, and lambs.

1997, Ruth Schubarth, “Born Backwards”, in Linda M. Hasselstrom, Gaydell M. Collier, and Nancy Curtis (eds.), Leaning Into the Wind: Women Write from the Heart of the West, Houghton Mifflin Books, page 161