We have found the following solution for: Class act? crossword clue. This crossword clue was last seen on September 19 2023 Wall Street Journal Crossword puzzle. The solution we have for Class act? has a total of 4 letters. Please keep in mind that same crossword clues might have different answers and this is the reason why we give the number of letters for the following answer so that it matches the crossword clue you've got. If something is wrong or missing kindly let us know and we will be more than happy to help you out. For older puzzles and more answers we recommend you to visit our Wall Street Journal Crossword Answers page.

Definition

•	A cupel or cupelling hearth in which precious metals are melted for trial and refinement.
•	Examination or trial by the cupel; hence, any critical examination or decisive trial; as, to put a man's assertions to a test.
•	Means of trial; as, absence is a test of love.
•	That with which anything is compared for proof of its genuineness; a touchstone; a standard.
•	Discriminative characteristic; standard of judgment; ground of admission or exclusion.
•	Judgment; distinction; discrimination.
•	A reaction employed to recognize or distinguish any particular substance or constituent of a compound, as the production of some characteristic precipitate; also, the reagent employed to produce such reaction; thus, the ordinary test for sulphuric acid is the production of a white insoluble precipitate of barium sulphate by means of some soluble barium salt.
•	To refine, as gold or silver, in a test, or cupel; to subject to cupellation.
•	To put to the proof; to prove the truth, genuineness, or quality of by experiment, or by some principle or standard; to try; as, to test the soundness of a principle; to test the validity of an argument.
•	To examine or try, as by the use of some reagent; as, to test a solution by litmus paper.
•	A witness.
•	To make a testament, or will.
•	Alt. of Testa

Answer

Definition

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