diff --git a/report_thesis/src/sections/introduction.tex b/report_thesis/src/sections/introduction.tex
index 54cfb287..186551b8 100644
--- a/report_thesis/src/sections/introduction.tex
+++ b/report_thesis/src/sections/introduction.tex
@@ -60,6 +60,7 @@ \section{Introduction}\label{sec:introduction}
 Sample & A physical specimen of rock, soil, or other material collected for scientific analysis.\\
 Location & The specific point on a sample where a LIBS laser is targeted. There are typically multiple locations per sample. \\
 Target & Refers to the variable that a machine learning model is trained to predict. \\
+Extreme Concentration Values & The concentration values of oxides in the targets that are significantly higher or lower than the majority of the data.
 \bottomrule
 \end{tabularx}
 \caption{Table of Terms}