Dictionary.com
Thesaurus.com

A-sample

British  

noun

  1. the primary urine or blood sample used in doping tests in professional sports; if the A-sample tests positive, the B-sample is tested to confirm or invalidate the results See also B-sample

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Equestrian Australia said earlier Kermond returned a positive A-sample for a metabolite of cocaine following a test conducted by Sport Integrity Australia on June 26.

From Fox News

The governing body said Jamie Kermond returned a positive A-sample for a metabolite of cocaine following a test conducted by Sport Integrity Australia on June 26.

From Seattle Times

New Zealand Rugby Players’ Association chief executive Rob Nicol said it was not yet clear why Tuipulotu’s A-sample had tested positive.

From Washington Times

The Olympic Council of Ireland said the fighter is provisionally suspended from competition after an "adverse analytical" finding in an A-sample.

From BBC

The club confirmed in a short statement on their website that Touré had been informed by the Football Association that an A-sample provided by him returned positive.

From The Guardian