material safety data sheet, n an informational form detailing the chemical and physical properties, hazards, and ways of safely handling a toxic chemical.
BRB means be right back. It is one of the most commonly used acronyms in online chat and texting. It communicates that the person is leaving for a moment, but will be back shortly.
BRD is a general term for respiratory disease in cattle caused by a range of factors, singly or in combination. A major cause of economic losses, BRD affects the lower respiratory tract / lungs (pneumonia) or upper respiratory tract (rhinitis, tracheitis, bronchitis).Etiology. BRD is defined as a âdisease complexâ: These pathogens interact with one another and the animalâs immune system to produce full-blown disease. 2  Bacterial pathogens apparently cause the acute syndrome by invading the bovine respiratory tract that has been compromised by viral infections, environmental conditions and/or other stress factors.