Answer:

opacity

Answer	Crossword Clue
OPACITY	Milk-glass property
OPACITY	Lack of transparency
OPACITY	Milk quality

OPACITY	Murkiness
OPACITY	Lucidity's opposite
OPACITY	Dullness
OPACITY	Light-blocking ability
OPACITY	Murky quality
OPACITY	Lack of clarity

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.