His eyeballs were covered in an unusually thick optronic membrane, similar to lizard scales.

Windows were arches covered with a thick membrane, laced with delicate silver veins.

Around it is a second, thicker membrane (4), known as the zona pellucida.

He shrouded his bead-bright eyes behind thick nictitating membranes.

Someone else had broken through the thick membrane of frustration and put this horrid plot into motion.

After six minutes the chemists obtained a membrane 15 micrometres thick, that completely filled the holes in the gold mesh.

Thus a thicker membrane has a larger reservoir of plasticizer to maintain flexibility over its lifespan.

The Beech jounced as he passed through a thick membrane of cumulus on his steady downward course.

They went deeper, cutting through the thick, almost transparent membrane which enclosed the lungs, clamping it back.

The removal of the thicker membrane is more complex.