Synonyms for the word "instillator" include dropper, pipette, dispenser, applicator, and atomizer. These words all describe devices used to dispense small amounts of liquid or fine mist. A dropper or pipette typically dispenses precise drops of liquid, while an applicator may have a specific purpose such as for medicinal use. An atomizer is used to create a fine mist or spray, often for use in perfume or air fresheners. Regardless of the specific device, instillators are often used in controlled dosages to ensure appropriate amounts of liquid are dispensed. Choosing the right instillator for a particular use is important to making the most of its intended purpose.