The information consists of underlying patterns or 'invariants' for vital features to the environment.

Impartiality is a vital feature of the conciliation officer's role.

The local post office is a vital and valued feature of the rural community.

And the 2 geeks that wanted this vital feature rejoice!

We have the ability to heal, probably an inferior process to regeneration but a vital feature in preservation of life.

Other works are cut into, removing the vital features such as eyes or whole faces.

The brush hairs are tapered to a fine point, a feature vital to the style of wash paintings.

There was a list of five vital features of the open society.

Collaboration with other theatre organisations is a vital feature of the company's work.

There is one vital feature my Palm Pilot has that a day planner never will.