The complete blood count (CBC) is a test that evaluates the cells that circulate in blood. Blood consists of three types of cells suspended in fluid called plasma: white blood cells (WBCs), red blood cells (RBCs), and platelets (PLTs).he complete blood count (CBC) is a test that evaluates the cells that circulate in blood. Blood consists of three types of cells suspended in fluid called plasma: white blood cells (WBCs), red blood cells (RBCs), and platelets (PLTs).
In literature, colloquialism is the use of informal words, phrases or even slang in a piece of writing. Colloquial expressions tend to sneak in as writers, being part of a society, are influenced by the way people speak in that society.
This would be the languge, words and phrases used in casual situations by the people, as opposed to formal language.   Colloquial refers to ways things are said in a local area, that might be different to other parts. It is a local slang. An example of colloquial diction in a literary piece can be seen in Mark Twain's Huckleberry Finn, where the main characters Huck and especially Jim (the black slave) speak using slang.