by Anne Marie Helmenstine, Ph.D. Updated June 13, 2014. Definition: A molecular orbital is an orbital or wavefunction of a molecule's electron. Electrons around a molecule can be associated with more than one atom and are often expressed as a combination of atomic orbitals.
Hereditary angioedema is a disorder characterized by recurrent episodes of severe swelling (angioedema). The most common areas of the body to develop swelling are the limbs, face, intestinal tract, and airway. Minor trauma or stress may trigger an attack, but swelling often occurs without a known trigger.
[Total: 1 Average: 2/5] Angioedema is a highly complicated disorder that is marked by swelling under the skin and gives rise to lethal complications. Read on to know what is Angioedema and all about the causes, symptoms, diagnosis and treatment of this deadly disorder. Angioedema Definition.