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.
eiâ¢ther. 1. one or the other of two: You may sit at either end of the table. 2. each of two; the one and the other: There are trees on either side of the river. 3. one or the other: Either will do. 4. (a coordinating conjunction that, when used with or, indicates a choice): Either call or write.. a. one or the other (of two): either coat will do. b. (as pronoun): either is acceptable. 2. both one and the other: there were ladies at either end of the table. 3. (coordinating) used preceding two or more possibilities joined by or : you may have either cheese or a sweet.