Geological Analysis

noun An abbreviation for American Astronomical Society, a professional society for astronomers in the United States.

• The use of AAS (anabolic-androgenic steroids) is strictly prohibited in professional sports.
• I heard some athletes are using AAS to enhance their performance.
• Bro, do you know where I can get some AAS for my workout?
• AAS can be seen as a shortcut to achieving physical gains, but the long-term consequences can be detrimental.

noun a series of chemically similar metallic elements with atomic numbers ranging from 89 to 103, found in the actinide series of the periodic table

• Actinides are a series of chemical elements in the periodic table that are radioactive.
• I learned about actinides in my chemistry class, they're pretty interesting.
• Actinides are like the rockstars of the periodic table, always causing a stir.
• The actinides are like the rebels of the periodic table, breaking all the rules with their radioactive properties.

noun the study or analysis of the activation of certain brain regions

• Activation analysis is a technique used in nuclear chemistry to determine the concentration of elements in a sample.
• I had to do activation analysis in my chemistry lab to figure out what was in the mystery solution.
• I'm so over activation analysis, it's such a pain to do all those calculations.
• In a way, activation analysis is like detective work for chemists, trying to uncover the hidden elements in a sample.