Editing BC (section)

== Science and technology ==
* [[Backcrossing]], a crossing of a hybrid with one of its parents, or a genetically similar individual
* [[Backward compatibility]], the ability of new software to work similarly to its predecessor
* [[Ballistic coefficient]], a measure of air drag on a projectile
* [[Base curve radius]], a parameter of a contact lens
* [[Battle command]], a military discipline
* [[Bayonet cap]], a standard light bulb connection
* [[bc (programming language)]], an arbitrary-precision calculator language
* [[Black carbon]], a carbonaceous component of soot
* [[Bliss bibliographic classification]], a library cataloguing system
* [[× Brassocattleya|× ''Brassocattleya'']] or ''Bc.'', an orchid genus
* [[Buoyancy compensator (diving)]], a piece of scuba diving equipment