Aerogels – Definition & Meaning


Aerogels are a fascinating material that has captured the attention of scientists and engineers alike. They are known for their incredibly low density, high porosity, and excellent thermal insulation properties. Aerogels have a wide range of applications, from aerospace engineering to biomedical research.


Aerogels are a type of solid material that is composed of a network of interconnected nanoparticles or nanofibers. They are typically made by removing the liquid component of a gel through a process known as supercritical drying. This leaves behind a solid material that is incredibly lightweight and porous, with a density as low as 0.001 g/cm³.


Aerogels were first discovered in the 1930s by Samuel Kistler, a chemist at the College of the Pacific in California. Kistler was studying the properties of gels and found that by removing the liquid component of a gel through supercritical drying, he could create a solid material that was incredibly lightweight and porous. He named this material “aerogel” because of its gel-like structure and its ability to float in air.

Meaning in different dictionaries

According to the Merriam-Webster dictionary, aerogel is defined as “a gel in which the liquid component has been replaced with a gas, resulting in a solid material that is extremely lightweight and porous.” The Oxford English Dictionary defines aerogel as “a highly porous solid material that is composed of a network of interconnected nanoparticles or nanofibers, typically made by supercritical drying of a gel.”


Aerogels are often associated with aerospace engineering, as they have excellent thermal insulation properties and can be used to insulate spacecraft and other high-altitude vehicles. They are also used in the construction industry as insulation material and in the production of energy-efficient windows.


Some synonyms of aerogels include “solid smoke,” “frozen smoke,” and “blue smoke.”


There are no direct antonyms of aerogels, but materials that are dense and heavy, such as metals, could be considered opposite in properties.

The same root words

Aerogels have no root words as they are a scientific term coined by Samuel Kistler.

Example Sentences

  • The spacecraft was insulated with aerogel to protect it from extreme temperatures.
  • The new energy-efficient windows are made with aerogel to improve insulation.
  • The researchers used aerogel in their experiments to study the properties of nanoparticles.

Aerogels are a unique and fascinating material that has a wide range of applications. They are incredibly lightweight and porous, with excellent thermal insulation properties, making them ideal for use in aerospace engineering, construction, and biomedical research. As research continues, it is likely that new applications for aerogels will be discovered, making them an exciting area of study for scientists and engineers alike.

Like this post? Please share to your friends:
Words Wiki
Leave a Reply

;-) :| :x :twisted: :smile: :shock: :sad: :roll: :razz: :oops: :o :mrgreen: :lol: :idea: :grin: :evil: :cry: :cool: :arrow: :???: :?: :!: