barbell /ˈbɑɹˌbɛl/ noun2 •A wide steel bar with premeasured weights counterpoised at either end, with the central span open for the hands of the weightlifter.The in-house gym included “squat racks” for weight lifting, with iron barbells branded with “Thinking Machines” in bold white typeface. — 2026 •A piece of jewellery composed of a straight bar with a bead on each end, used as a piercing. formsbarbells