formaldehyde

As a noun formaldehyde

is formaldehyde.

As an adjective undefined is

lacking a definition or value.

In organic compound|lang=fr terms the difference between formaldehyde and ethanol

is that formaldehyde is formaldehyde while ethanol is ethanol.

As nouns the difference between formaldehyde and ethanol

is that formaldehyde is formaldehyde while ethanol is ethanol.

As an abbreviation pcp

is (chemistry) phencyclidine.

As an initialism pcp

is (biochemistry) peptidyl carrier protein.

As a noun formaldehyde is

formaldehyde.

As nouns the difference between dust and formaldehyde

is that dust is (uncountable) fine, dry particles of matter found in the air and covering the surface of objects, typically consisting of soil lifted up by the wind, pollen, hair, etc while formaldehyde is formaldehyde.

As a verb dust

is to remove dust from.

In organic compound terms the difference between formaldehyde and methanol

is that formaldehyde is the simplest aldehyde, H-CHO, a colourless gas that has many industrial applications; it dissolves in water to give formalin while methanol is the simplest aliphatic alcohol, CH₃OH; a colourless, toxic, inflammable liquid, used as a solvent, antifreeze, in the chemical industry, and in the preparation of methylated spirit.

In organic compound terms the difference between formamide and formaldehyde

is that formamide is the amide of formic acid HCO-NH₂ or any N-substituted derivative; they are used in the synthesis of pharmaceuticals while formaldehyde is the simplest aldehyde, H-CHO, a colourless gas that has many industrial applications; it dissolves in water to give formalin.

As nouns the difference between formaldehyde and retinaldehyde

is that formaldehyde is the simplest aldehyde, H-CHO, a colourless gas that has many industrial applications; it dissolves in water to give formalin while retinaldehyde is retinal.

As nouns the difference between formaldehyde and vanillin

is that formaldehyde is formaldehyde while vanillin is the name of a chemical compound, 4-hydroxy-3-methoxybenzaldehyde, which is the primary constituent of vanilla.