B.S. /ˌbiː ˈes/ noun American English

1. [countable] (Bachelor of Science) a first university degree in a science subject Synonym : BSc British English ⇒ B.A.
B.S. in
a B.S. in Biology

2. [uncountable] not polite the abbreviation of bullshit

[TahlilGaran] Dictionary of Contemporary English ▲

BS
Bullshit - lies or other information that is false
We heard a lot of BS at the meeting last night which nobody believed.

[TahlilGaran] English Idioms Dictionary ▲

BS
Blood Stained (Everquest) 
Bovine Scatology 
Brainstorm/Brainstorms/Brainstorming/Brainstormed 
Bull Stuff (polite form)

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲

B.S.
Boiler survey. Balance sheet

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲