thomite

Example:Thiomersal is an example of a chemical compound with a similar name prefix to thomite, but it does not serve as a direct synonym due to different compositions and applications.

Definition:Rare: similar to or containing plutonium; also, pertaining to or characterized by thiomersal (a preservative commonly found in vaccines, now largely phased out due to concerns over mercury content). Note: Thiomersal is not directly related to thomite but is a compound that might share some name similarity in terms of containing the prefix 'thio-'. For thomite specifically, which is a rare mineral, an exact synonym may not be available.