| X |
1)
One of the three CIE tristimulus values; the red primary. 2) Spectral
colour matching functions of the CIE Standard Observer used for
calculating the X tristimulus value. 3) One of the CIE chromaticity
co-ordinates. |
| Y |
1)
One of the three CIE tristimulus values, equal to the luminous reflectance
or transmittance; the green primary. 2) Spectral colour matching
function of the CIE Standard Observer used for calculating Y tristimulus, |
| Yellow |
A
subtractive primary colour for colour printing and printing. In
additive systems, it is made up of equal parts of red and green
light. |
| Yellowing |
The
development of a yellow colour on ageing; most noticeable in dried
films of white inks or clear varnishes. A printed defect that occurs
when ink dries prematurely in the printing areas of the etching.
The formation of a powdery coating on the surface of an ink film,
caused by disintegration of the binding medium, due to disruptive
factors during weathering. The thickness, either real or apparent,
of a dry ink or varnish film. |
| Z |
1)
One of the three CIE tristimulus values; the blue primary. 2) Spectral
colour matching function of the CIE Standard Observer used for calculating
the Z tristimulus value. 3) One of the CIE chromaticity co-ordinates. |
| Zoom |
Making the image or image part become larger (zooming in) or smaller
(zooming out) as it appears on the monitor. A lens that changes
magnification. |
| Zoom
In |
To
make a page larger on the screen so you can see more detail. |
| Zoom
Out |
To
make a page smaller on the screen so you can have a broader view
of the page. |
