Pertussis, also known as whooping cough, is a highly contagious respiratory infection. Pertussis causes violent coughing which can make it hard to breath. Pertussis affects babies and young children most commonly and most severely.ertussis, also known as whooping cough, is a highly contagious respiratory infection. Pertussis causes violent coughing which can make it hard to breath. Pertussis affects babies and young children most commonly and most severely.
Legal Definition of credit bureau. : a private business that compiles information on consumers' creditworthiness and provides this information to lenders.
Credit â CR. Definition: An accounting entry that may either decrease assets or increase liabilities and equity on the company's balance sheet, depending on the transaction. When using the double-entry accounting method there will be two recorded entries for every transaction: a credit and a debit.redit â CR. Definition: An accounting entry that may either decrease assets or increase liabilities and equity on the company's balance sheet, depending on the transaction. When using the double-entry accounting method there will be two recorded entries for every transaction: a credit and a debit.