She had to rarefy and let it through.

The air consequently was damp and gross, for want of stronger rays to open and rarefy it.

The rarefy of the atmosphere continued to affect the wood-work of the wagons, and the wheels were incessantly falling to pieces.

But as such means are not at disposal, it becomes necessary to place the terminal in a bulb and rarefy the air in the same.

This air augments its capacity for heat in proportion as it rarefies.

Communication between parents and children has rarefied in the 20th century.

If this was indeed a place of departure, that rarefied spot was the platform.

Two balls were then used in a large air-pump receiver, and the air rarefied.

The giant visitors had departed, and the Naval Academy atmosphere appeared to be rarefied.

Heat acting upon air rarefies it, by which it becomes specifically lighter, and mounts upward.

Of the latter, City's glamour factor would hit the rarefied air occupied by the exclusive set.

The dining-room was whirring and shifting now; a curious lightness permeated and rarefied the heavy air.

Some of the speakers had quite rarefied notions.

And for the rarefied few who will take one, that may be its most appreciated virtue.

To say, therefore, that the same matter is enlarged, without being rarefied, is to combine contradictories-viz.

In its ascent the air is cooled, rarefied, and to a great extent deprived of its moisture.