In atrial fibrillation, the electrical impulse of the heart is not regular. 1  Parts of the heart cannot contract in an organized pattern. 2  As a result, the heart cannot pump enough blood to meet the body's needs.
Synonyms, crossword answers and other related words for IN A NUTSHELL. summed up briefly; gave the facts in a nutshell; just tell me the story in a nutshell; explained the situation in a nutshell.
Part of Speech: Noun. Meaning: 1. A bolt nut with wings to allow tightening with the fingers, a thumbnut (see photo). 2. An Asian walnut tree whose nuts have wing-like projections. 3. (British slang) A person with protruding ears. 4. (Slang) A crazy person.5. bolt nut with wings to allow tightening with the fingers, a thumbnut (see photo). 2. An Asian walnut tree whose nuts have wing-like projections. 3. (British slang) A person with protruding ears. 4. (Slang) A crazy person. 5.