The abbreviation AESI has multiple possible meanings, depending on the context in which it is used. Here are some of the most common definitions found in the search results:

• Adverse Event of Special Interest: This is a medically significant event that has the potential to be associated with a product or intervention, and is pre-specified in protocols and instructions provided for investigators as to how and when to report it to the sponsor.

• Aeronautical Society of India: This is a professional society in India that promotes the advancement of aeronautical sciences and engineering.

• Associated Engineering Sciences Inc: This is a company that provides engineering and consulting services in the fields of geotechnical, environmental, and materials engineering.

• Agricultural Environmental Stewardship Initiative: This is a program in Canada that promotes sustainable agriculture practices and environmental stewardship.

• Advanced Electro-Mechanical Sales, Inc: This is a company that provides electrical and mechanical components and systems for industrial automation and control applications.

It is important to note that the meaning of AESI can vary depending on the industry or field in which it is used.