Learner's definition of DITHER. [singular] informal. : a very nervous, confused, or excited state â usually used in the phrase in a dither. They're in a dither over what to do next. The news of his arrival had us (all) in a dither.
Hepatectomy is the surgical resection (removal of all or part) of the liver. While the term is often employed for the removal of the liver from a liver transplant donor, this article will focus on partial resections of hepatic tissue and hepatoportoenterostomy. 1  1 History.  2 Indications.
Vasectomy is a form of birth control for men that is meant to be permanent. During vasectomy, a health care provider closes or blocks the tubes that carry sperm. When the tubes are closed, sperm cannot leave a man's body and cause pregnancy. Sperm are made in the testicles. They pass through two tubes called the vasa deferentia to other glands and mix with seminal fluids to form semen.