de·fo·cus 
(dē-fōkəs)
(dē-fōkəs)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.
- vertebra
- vertebral
- vertebral arch
- vertebral canal
- vertebral column
- vertebrally
- vertebrate
- vertex
- vertical
- vertical angle
- vertical circle
- vertical file
- vertical gene transfer
- verticality
- vertically
- verticalness
- vertices
- verticil
- verticillaster
- verticillastrate
- verticillate
- verticillated
- verticillately
- verticillation
- vertiginous