noun (plural only) as in strong fondness

Word Combinations

Example:The cupellers used an assay to determine the authenticity of the gold.

Definition:a method for testing the purity and value of a metal

From assay

Example:The cupellers' job was to perform the purification of the alloy to ensure it met the required standards.

Definition:the process of making something pure

From purification

Example:The cupellers performed validation tests to assess the reliability of the metal samples.

Definition:the process of demonstrating that something is valid or authentic

From validation