translucence
Concise Oxford English Dictionary © 2008 Oxford University Press:
translucent /transˈluːs(ə)nt, trɑːns-, -nz-/
▶adjective allowing light to pass through partially; semi-transparent.
– derivatives
translucence noun,
translucency noun,
translucently adverb.
translucence noun,
translucency noun,
translucently adverb.
– origin C16: from L. translucent-, translucere ‘shine through’.
'translucence' also found in these Oxford entries:

