spot test

noun

1. an informal test run without elaborate preparation in order to obtain an immediate sample response.
2. Chemistry. a test for the identification of an element or compound by means of a reagent that produces a characteristic color change or precipitate.

Word History and Origins

Origin of spot test¹

First recorded in 1925–30

Example Sentences

The team are also hoping to secure funding to create a simpler blood spot test where a drop of blood can be spotted on a card and posted to the lab to investigate if it can predict Parkinson's disease even earlier than the seven years before the onset of symptoms in this study.

From Science Daily

And as always, do a spot test first.

From Salon

If the material will be ok with it — don't forget about that handy spot test — using a protectant like the Scotchgard Fabric Water Shield to keep liquid-based stains from ever settling in on your furniture could be a great first line of defense.

From Salon

She is urging the Irish government to introduce the blood spot test at birth so that children with the rare condition can be treated quickly.

From BBC

A blood spot test can detect the condition at birth, allowing quicker treatment.

From BBC