ReadingWillow structured literacy program for Australian students

Dictionary Entry

cortisol

noun

Find the meaning of the word cortisol, plus dictionary definition, pronunciation, thesaurus-style synonyms, antonyms, and related vocabulary.

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Meaning

Dictionary meaning in a clear, student-friendly format.

the stress hormone — recycled here as a factor that disrupts adolescent circadian rhythm and sleep quality [R — recycled from Day 16]

Example Sentence

Late-night phone use can spike cortisol and keep teens wide awake.

Usage Note

Use when discussing biology, health, or sleep—especially how stress or screens at night affect the body.

Antonyms

recovery