transparent substance
translucent substance

Its surface was a honeycomb lattice of hard, whitish material, the holes filled with a smooth translucent substance.

It is a translucent, milky-white or yellow substance, and (like onyx) is sometimes streaked with light and dark bands.

He saw that the joints had been heavily sealed with a translucent substance and the smell confirmed silicone caulk.

She deposited a hard bar of a translucent, greenish substance in his hand.

It is extracted as variously colored, translucent substances, which are soluble in hot water but become viscous on cooling.

The top should be a rich translucent yellow custard-like substance.

But it had no trigger and the muzzle flared and the whole thing was made of some white, translucent substance.

Erick was completely coated in a medical package, as if the translucent green substance had been tailored into a skintight leotard.

The stained glass was neither glass nor plastic but some thick, translucent substance that seemed as hard as the surrounding stone to the touch.

A sheet of some shining, translucent substance coated the top of the blossom, sealing it off.