adj

diagnostic

deye-uhg-NOS-tihk

adj

Relating to, or used in, diagnosis.

"The clinic invested in new diagnostic equipment for scanning patients."

Designed to assess someone's existing knowledge or skill.

"Students took a diagnostic test at the start of the course to gauge their level."

noun

A test or procedure used to identify the cause of a problem.

"The technician ran a diagnostic on the server before restarting it."

How to Use Diagnostic

Learner’s notes

In plain EnglishSomething used to figure out what is wrong — a test, tool, or piece of equipment.

Common pairings

diagnostic test diagnostic tool run a diagnostic

more diagnostic comparative, diagnostics plural, most diagnostic superlative

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Can you complete this real example?

The clinic invested in new _____ equipment for scanning patients.

From Greek diagnostikos, related to diagignoskein ("to distinguish, diagnose").

agnostic