noun: (medicine) Initialism of cerebrospinal fluid. [(medicine) A clear bodily fluid in the form of a very pure saline solution with microglia that occupies the subarachnoid space in the brain (between the skull and the cerebral cortex), and which acts as a cushion or buffer for the cortex.]
noun: (virology) Initialism of classical swine fever, caused by Pestivirus C (CSFV)
noun: (management) Initialism of critical success factor. [(management) An element that is necessary for an organization or project to achieve its mission.]