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The Collaborative International Dictionary

Nebulizer \Neb"u*li`zer\, n. An atomizer.

Douglas Harper's Etymology Dictionary

1865, agent noun from verb nebulize "to reduce to a mist or spray" (1865), from Latin nebula "mist" (see nebula) + -ize. Related: Nebulization.


n. 1 A device used to convert liquid into a fine spray of aerosols, by means of oxygen, compressed air, or ultrasonic vibration; sometimes also referred to as an atomizer. 2 (context medicine English) A device used to administer a medicine into the lungs, by converting the medicine from liquid state into a fine spray of aerosols, to be inhaled through the nose or mouth. The conversion of liquid medicine is performed by means of oxygen or compressed air or ultrasonic vibration, which differ from the aerosolizing means used by inhalers and vaporizers.


In medicine, a nebuliser or nebulizer (see spelling differences) is a drug delivery device used to administer medication in the form of a mist inhaled into the lungs.

Nebulizers are commonly used for the treatment of cystic fibrosis, asthma, COPD and other respiratory diseases or disorders.

Analytical nebulizers are another form of nebulizer and are used primarily in laboratory settings for elemental analysis.

Nebulizers use oxygen, compressed air or ultrasonic power to break up solutions and suspensions into small aerosol droplets that can be directly inhaled from the mouthpiece of the device. The definition of an aerosol is a "mixture of gas and liquid particles."

Usage examples of "nebulizer".

His face was goggled into a phantascope, and his lips were wrapped around a thick tube plugged into a nebulizer socket on the wall.

Seldane nuclear-grade antihistamine and a dextromethorphan nebulizer and a written excuse from A.

We had to close the unit until it was discovered that some of our nebulizers had become contaminated.