| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a gadget; dingus; thingumbob. |
inconstant in·con·stant (ĭn-kŏn'stənt)
adj.
Changing or varying, especially often and without discernible pattern or reason.
Relating to a structure that normally may or may not be present.