vasodilator

"The doctor used eye drops to cause dilation of my pupils so she could examine the back of my eyes. "

"The doctor prescribed aspirin."

"to reduce weight, speed, heat, expenses, price, personnel etc."

"The Bloods are a rival gang at the high school. "

"They identified a burst pipe as the cause of the flooding."

"The travel agent has the power to book flights and hotels for us. "

"If you still feel unwell tomorrow, see your doctor."

"My grandfather helped me with my math homework. "

"Apply pressure to the wound to stop the bleeding."

"The harbor was full of vessels, from small fishing boats to large cargo ships. "

"The scientist studied the chemical composition of the soil sample. "

"My sister studied hard for the exam, thereby achieving a good grade. "