English Dictionary

Definition of “B-sample”

B-sample

a urine or blood sample used in doping tests in professional sports to confirm or invalidate the presence of banned substances in the first sample, the A-sample See also A-sample

Only Shang Shichun, China's 75kg women's world champion, has asked for the B-sample to be tested.

The Australian (2004)

Rai's B-sample proved he had used the banned stimulant strychnine to win the clean-and-jerk and overall titles in the 77kg class.

Sun, News of the World (2002)

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