Definition of coagulase in US English:



  • A bacterial enzyme which brings about the coagulation of blood or plasma and is produced by disease-causing forms of staphylococcus.

    • ‘The clinical presentation of systemic infection, particularly with coagulase negative staphylococci, can be insidious.’
    • ‘Gram positive organisms including the coagulase negative staphylococci and the viridans streptococci are the most commonly isolated.’
    • ‘Bacterial culture of biopsy specimens grew few coagulase negative staphylococci (which are thought to be contaminants), while fungal, viral, and legionella cultures of the specimens were all negative.’
    • ‘The most common pathogens were coagulase negative staphylococci, escherichia coli, and Staphylococcus aureus.’
    • ‘In the case of Gram positive cocci, we did a catalase test followed by, for example, a coagulase test or an optochine test.’