Monocytes move to sites of infection and signal the immune system that a response is needed and are responsible for eliminating foreign substances. The absolute monocytes blood test measures the percentage of monocytes in relation to all white blood cells.
Parentheses are a pair of curved marks that you put around words or numbers to indicate that they are additional, separate, or less important. (This sentence is in parentheses.) 2.
parentheses vs parenthesis. Parenthesis is of course Greek and means in fact insertion. It has taken the meaning of the signs  (  or  ) . Parentheses is the regular plural. Usually, you use a pair of the signs showing an insertion, then between parentheses - or brackets ; however, in parenthesis means : as an afterthought.