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| the offspring of a zebra and a donkey. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
hypertension hy·per·ten·sion (hī'pər-těn'shən)
n.
Persistent high blood pressure.
Arterial disease in which chronic high blood pressure is the primary symptom.
| hypertension (hī'pər-těn'shən) Pronunciation Key
Abnormally high blood pressure, especially in the arteries. High blood pressure increases the risk for heart attack and stroke. Also called high blood pressure. |