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.
Meaning of âtongue-twisterâ in the English Dictionary. See all translations. uk â /ËtÊÅËtwÉªs.tÉr/ us â /ËtÊÅËtwÉªs.tÉ/. âº a sentence or phrase that is intended to be difficult to say, especially when repeated quickly and often: She sells seashells on the seashore is a well-known tongue-twister.