BS

英文释义

n a bachelor's degree in science
n aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
n originally thought to be a single vitamin but now separated into several B vitamins
n a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
n a logarithmic unit of sound intensity equal to 10 decibels
n (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
n the 2nd letter of the Roman alphabet
n the blood group whose red cells carry the B antigen