The uncontrolled growth of cells that starts with one abnormal cell is known as

Cancer.

Explanation:

Cancer is one of the  most leading cause of death in today's world. Cancer is a non infectious disease and can affect any part of the individual's body and can affect the multiple parts at a time.

Cancer is generally caused by the mutation in the one cells that become abnormal. This abnormal cells multiplies and can spread to the different parts of the body as well and can form the malignant tumors.  Cancer can affects the immune parts of the body and divided into the different stages.

not: both offer magnification to the atomic level.