The finger penetrated the fragile translucent membrane protecting Timmy's empty eye socket, plunged straight through into the brain.

Unlike the fragile lipid-bilayer membrane in which most natural ion channels are embedded, this synthetic film is mechanically and chemically robust.

He explained, "It's a fragile membrane that separates us from disaster."

Although the paper looks like a fragile membrane, it is actually tough.

Another tore through the fragile membrane of her wing.

But it broke the fragile membrane of Rod's control.

A balloon bursting against the fragile membranes of his eyes.

Opening her Third Eye, Riane could feel the thin and fragile membrane between life and death against which the baby lay.

Churning physically agitates the cream until it ruptures the fragile membranes surrounding the milk fat.

It's a very fragile membrane.