One of the best protective coverings for perennials is the Christmas tree.

Strip us of our protective coverings and we are sartorially lost.

She wears a protective covering, showing concern for our health and hers.

Ayyar set the helmet to one side and opened the rest of the protective covering.

The epidermis serves as the protective covering of the root.

Nothing must be removed from its protective covering, he said.

Barber said he will test out various protective coverings during this week's practices.

Without the protective covering, the signals between neurons do not travel well.

He was, in short, an exposed nerve for whom art provided the only protective covering.

The icon is never looked at and remains hidden behind a protective covering.