What is the meaning of the term bc in transistor bc557?

How long will swelling in foot and leg last after metatarsal fusions? What is the definition of a SOAP note? What is the medical term for disorder of a neuron? What is another word for a big yawn? What is the medical term meaning excessive flow of blood from the uterus between menstrual periods? What is cpt code for biopsy of anorectal wall via proctosigmoidoscopy? Is doctors a proper adjective? How do you pronounce blossom in Chinese? What is the cpt code for asymptomatic? What do SVPB's on a heart test stand for? What is a term that means the same thing as insurance company? What does halimosadiyo mean? What is another word for twist and squeeze? Meaning of word taaruf? What does 925B mean? What cochlea means? What is the superlative of patient? What is cpt for abdominal aortic angiogram? What does greaze mean? How do they do a ductomy?