A brain tumor is a growth of abnormal cells in the tissues of the brain. Brain tumors can be benign, with no cancer cells, or malignant, with cancer cells that grow quickly. Some are primary brain tumors, which start in the brain. Others are metastatic, and they start somewhere else in the body and move to the brain. Brain tumors can cause many symptoms. Some of the most common are.
The definition of a restraint is something that restricts freedom or prevents someone from doing something. When someone is tied up and prevented from moving, this is an example of restraint.
1 1 [countable] a thing that limits or restricts something, or your freedom to do something synonym restriction constraints of time/money/space financial/economic/legal/political constraints constraint on something This decision will impose serious constraints on all schools.