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What is the difference between colourless and formaldehyde?

colourless | formaldehyde |

As an adjective colourless

is having little or no colour.

As a noun formaldehyde is

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

colourless

English

(wikipedia colourless)

Alternative forms

* colorless (American spelling)

Adjective

(en adjective)
  • Having little or no colour.
  • (of a liquid) Water white.
  • Lacking in interest or variety.

    • See also

    * (Colorless green ideas sleep furiously) British English forms

    formaldehyde

    English

    (wikipedia formaldehyde)

    Noun

    (-)
  • (organic compound) The simplest aldehyde, H-CHO, a colourless gas that has many industrial applications; it dissolves in water to give formalin.

    • Synonyms

    * (H-CHO) (when used as a preservative), methanal (IUPAC name)

    Hypernyms

    * (organic compound) aldehyde

    Related terms

    * formalin * formic acid