Adsorbent is a term that refers to substances that attract and hold molecules, ions, or particles on their surface. There are many synonyms for the word "adsorbent" that are commonly used in scientific and technical writing. Some of the most common synonyms for adsorbent include absorbent, sorbent, absorbent material, desiccant, and collector. Other related terms include adsorption agent, adsorption medium, adsorption filter, adsorption membrane, and adsorption bed. These synonyms are used in a variety of fields, including chemistry, environmental science, and materials science, to describe substances that have the ability to capture and retain molecules and particles from a fluid or gas.