noun
thorin
noun
1
A highly sensitive chemical indicator used in labs to detect and measure barium, beryllium, lithium, uranium, and thorium in solution.
"The chemist added a drop of thorin to test for trace uranium in the sample."
"Thorin is prized in analytical chemistry for how sharply it changes colour at the titration endpoint."
How to Use Thorin
Learner’s notesIn plain EnglishA specialist lab reagent (not a common word) used to spot certain metals in a solution by making the liquid change colour.
When to use it
Technical/scientific vocabulary — you will only meet this in chemistry contexts, not everyday speech.
Word Forms
Thorins plural
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The chemist added a drop of _____ to test for trace uranium in the sample.