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.
In more formal usage, parenthesis may refer to the entire bracketed text, not just to the punctuation marks used (so all the text in this set of round brackets may be said to be a parenthesis, a parenthetical, or a parenthetical phrase).