John le Carre wrote fiction espionage novels. Espionage novels are novels which focus on a spy's life or spying in general. His most famous work is The Spy That Came In from the Cold.
The definition of a ditz is slang for someone who is silly or who seems to have scattered thinking. An example of ditz is a silly dumb person who just giggles all day. ditz. Slang a person thought of as being flighty, eccentric, silly, etc. ditz.
Hydrochlorothiazide (HCTZ) is a diuretic approved for controlling high blood pressure and reducing water retention (edema). Clinical studies have shown that this medicine can significantly lower both systolic and diastolic blood pressure.