Usage: usually capitalized B&S
1. : the recipient of a bachelor's degree which usually signifies that the recipient has done the greater part of his course work in the sciences with some specialization in a particular science
2. : the degree making one a Bachelor of Science — abbr. B.S., B.Sc., S.B.
the degree of Bachelor of Science in agronomy
a B.S. in chemical engineering
a B.Sc. in architecture