Hpa

adj, name

adj, name ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Initialism of hypothalamic-pituitary-adrenal. abbreviation, alt-of, initialism, not-comparable

    "Numerous other reports have shown that stress experience alters the sleep-wake cycle […], pointing to a tight relationship between HPA axis activity and the sleep-wakefulness cycle […]."

Proper Noun
  1. 1
    Initialism of Health Protection Agency. UK, abbreviation, alt-of, historical, initialism

Synonyms

All synonyms
hectopascal

Example

More examples

"Numerous other reports have shown that stress experience alters the sleep-wake cycle […], pointing to a tight relationship between HPA axis activity and the sleep-wakefulness cycle […]."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.