LIQUID
Liq"uid, n.

1. A substance whose parts change their relative position on the slightest pressure, and therefore retain no definite form; any substance in the state of liquidity; a fluid that is not aëriform.

Note: Liquid and fluid are terms often used synonymously, but fluid has the broader signification. All liquids are fluids, but many fluids, as air and the gases, are not liquids.

2. (Phon.)

Defn: A letter which has a smooth, flowing sound, or which flows smoothly after a mute; as, l and r, in bla, bra. M and n also are called liquids. Liquid measure, a measure, or system of measuring, for liquids, by the gallon, quart, pint, gill, etc.

LIQUID AIR
Liq"uid air. (Physics)

Defn: A transparent limpid liquid, slightly blue in color, consisting of a mixture of liquefied oxygen and nitrogen. It is prepared by subjecting air to great pressure and then cooling it by its own expansion to a temperature below the boiling point of its constituents (N -194º C; O -183º C.).

LIQUIDAMBAR
Liq"uid*am`bar, n. Etym: [Liquid + amber.]

1. (Bot.)

Defn: A genus consisting of two species of tall trees having star- shaped leaves, and woody burlike fruit. Liquidambar styraciflua is the North American sweet qum, and L. Orientalis is found in Asia Minor.