(Australia) A truck and trailer combination consisting of a prime mover coupled to two trailers.

plural of B-double

(music) a minor key with the notes B, C♯, D, E, F♯, G, A / (music) the minor chord with a root of B

(emergency medicine) Initialism of biological, nuclear / radiological, incendiary, chemical, and explosive agents, used to remember the types of hazmat emergencies.

(emergency medicine) A basic level emergency medical technician that has passed national registry examination; trained less extensively than the advanced emergency medical technician or paramedic (EMT-P) level

Abbreviation of back-up.

(linguistics) The western member of the Tocharian branch of Indo-European languages, extinct since the ninth century. Once spoken in the Tarim Basin in Central Asia.

(computing) An indexed data structure suitable for storage of a large number of items in a balanced fashion, with very few disk accesses required for locating the correct record block.

Abbreviation of rhythm and blues. / Ellipsis of contemporary R&B.

(music) Initialism of backed with.. Commonly used with old 45 and 78 RPM records, referring to the flip side (commonly called "B-side") of the record.