a bar to which heavy discs are attached at each end; used in weightlifting
"She lifted the barbell above her head, struggling as the heavy discs wobbled dangerously before she managed to lower it safely."
A wide steel bar with premeasured weights affixed to either end, with the central span open for the hands of the weightlifter.
"After warming up on the machine, he loaded a heavy set onto the barbell and lifted it overhead in front of the mirror."