BS 7925-1 is a Glossary of Software Testing Terms.
It may be ordered from BSI by following the link BS
7925-1 Vocabulary of terms in software testing.
But, be warned - it is not cheap.
Alternatively, of the latest draft SIGIST Standard from which this official British Standard was produced are available - a zipped copy of the the draft BCS Glossary of Terms used in Software Testing v6.3 is available for download here, and is also available to view online.
An up-to-date 'living' Glossary, which is continuously evolving as more terms are added to it is available by following this 'Living' Glossary link.
Comments received on this standard may be viewed on the BS 7925-1 Comments page.