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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
| liquid air | |
| —n | |
| air that has been liquefied by cooling. It is a pale blue and consists mainly of liquid oxygen (boiling pt: --182.9°C) and liquid nitrogen (boiling pt: --195.7°C): used in the production of pure oxygen, nitrogen, and the inert gases, and as a refrigerant | |