BSL

1. abbreviationinitialismInitialism of British Sign Language.
2. rail transportThe station code of Bhusaval Junction railway station in India.
3. abbreviationinitialismcomputingInitialism of Business Source License.

   The BSL is a ‘Source Available’ license that freely allows using the code for development and other non-production work such as testing. Production use of the software requires a commercial license from Lightbend.

   2022 September 8, Paul Kunert, quoting Jonas Bonér, “Open source biz sick of FOSS community exploitation overhauls software rights”, in The Register

   Synonyms: BUSL

4. abbreviationinitialismcomputingInitialism of Boost Software License.

plural BSLs

1. abbreviationcountableinitialismuncountableInitialism of blood sugar level.

   Synonyms: BGL

2. abbreviationcountableinitialismuncountableInitialism of biosafety level.

   The scientists then carried out their experiments at the same level of security as their other work with the coronaviruses, known as Biosafety Level 3, or BSL-3.

   2022 July 15, Carl Zimmer, “Bat Virus Studies Raise Questions About Laboratory Tinkering”, in The New York Times, →ISSN

3. abbreviationacronymcountableuncountableAcronym of breed-specific legislation.