Definition of "Identical" :

adjective: (of twins) derived from a single egg or ovum

"Identical twins are monovular."

adjective: coinciding exactly when superimposed

"Identical triangles."

adjective: having properties with uniform values along all axes

adjective: exactly alike; incapable of being perceived as different

"Rows of identical houses."

adjective: being the exact same one; not any other:

"This is the identical room we stayed in before."