Pulmonary hypertension is a lung condition in which there is increased pressure in the pulmonary arteries that travel from the heart to the lungs. The most common symptoms are shortness of breath and fatigue. Other more severe symptoms are chest pain, palpitations, and dizziness. There is no cure for the disease, but it can be managed with medication.
either or. The definition of either or is an expression used to indicate that there are only two options or that both of two options are acceptable or equivalent. An example of either or is when you are offered either spaghetti or cereal for dinner and are different between the two so you say either or to indicate that both would work.
Algebra. an expression that is a sum or difference of two terms, as 3 x + 2 y and x 2 â 4 x. 2. Zoology, Botany. a taxonomic name consisting of a generic and a specific term, used to designate species. adjective. 3. Algebra. consisting of or pertaining to two terms or a binomial.