defocus

(redirected from Defocus aberration)
Also found in: Medical, Encyclopedia, Wikipedia.

de·fo·cus

 (dē-fō′kəs)
tr.v. de·fo·cused, de·fo·cus·ing, de·fo·cus·es or de·fo·cussed or de·fo·cus·sing or de·fo·cus·ses
To cause (a beam or a lens) to deviate from accurate focus.
n.
The act or result of causing a lens to deviate from accurate focus.

defocus

(diːˈfəʊkəs)
vb
formal to go or cause to go out of focus