"HPA" meaning in English

See HPA in All languages combined, or Wiktionary

Adjective

Head templates: {{en-adj|-}} HPA (not comparable)
  1. Initialism of hypothalamic-pituitary-adrenal. Tags: abbreviation, alt-of, initialism, not-comparable Alternative form of: hypothalamic-pituitary-adrenal
    Sense id: en-HPA-en-adj-UeyiYVyE Categories (other): English entries with incorrect language header, Pages with 1 entry, Pages with entries, Anatomy Disambiguation of English entries with incorrect language header: 43 28 28 Disambiguation of Pages with 1 entry: 55 7 38 Disambiguation of Pages with entries: 59 7 35 Disambiguation of Anatomy: 73 19 8

Proper name

Head templates: {{en-prop}} HPA
  1. (UK, historical) Initialism of Health Protection Agency. Tags: UK, abbreviation, alt-of, historical, initialism Alternative form of: Health Protection Agency
    Sense id: en-HPA-en-name-ajtZhyQH Categories (other): British English

Noun

Forms: HPAs [plural], HPA [plural]
Head templates: {{en-noun|s|*}} HPA (plural HPAs or HPA)
  1. Initialism of human-powered aircraft Tags: abbreviation, alt-of, initialism Alternative form of: human-powered aircraft
    Sense id: en-HPA-en-noun-XsanuLmD

Inflected forms

{
  "forms": [
    {
      "form": "HPAs",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "HPA",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "*"
      },
      "expansion": "HPA (plural HPAs or HPA)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "human-powered aircraft"
        }
      ],
      "categories": [],
      "glosses": [
        "Initialism of human-powered aircraft"
      ],
      "id": "en-HPA-en-noun-XsanuLmD",
      "links": [
        [
          "human-powered",
          "human-powered#English"
        ],
        [
          "aircraft",
          "aircraft#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "HPA"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "HPA (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "hypothalamic-pituitary-adrenal"
        }
      ],
      "categories": [
        {
          "_dis": "43 28 28",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "55 7 38",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "59 7 35",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "73 19 8",
          "kind": "other",
          "langcode": "en",
          "name": "Anatomy",
          "orig": "en:Anatomy",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              131,
              134
            ]
          ],
          "ref": "2008, Helmut Vedder, edited by Adriana del Rey, George Chrousos, and Hugo Besedovsky, The Hypothalamus-Pituitary-Adrenal Axis (NeuroImmune Biology), volume 7, →ISBN, →ISSN, page 25:",
          "text": "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 […].",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of hypothalamic-pituitary-adrenal."
      ],
      "id": "en-HPA-en-adj-UeyiYVyE",
      "links": [
        [
          "hypothalamic",
          "hypothalamic#English"
        ],
        [
          "pituitary",
          "pituitary#English"
        ],
        [
          "adrenal",
          "adrenal#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "not-comparable"
      ]
    }
  ],
  "word": "HPA"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "HPA",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Health Protection Agency"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of Health Protection Agency."
      ],
      "id": "en-HPA-en-name-ajtZhyQH",
      "links": [
        [
          "Health Protection Agency",
          "w:Health Protection Agency"
        ]
      ],
      "raw_glosses": [
        "(UK, historical) Initialism of Health Protection Agency."
      ],
      "tags": [
        "UK",
        "abbreviation",
        "alt-of",
        "historical",
        "initialism"
      ]
    }
  ],
  "word": "HPA"
}
{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English proper nouns",
    "English uncomparable adjectives",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Anatomy"
  ],
  "forms": [
    {
      "form": "HPAs",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "HPA",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "*"
      },
      "expansion": "HPA (plural HPAs or HPA)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "human-powered aircraft"
        }
      ],
      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "Initialism of human-powered aircraft"
      ],
      "links": [
        [
          "human-powered",
          "human-powered#English"
        ],
        [
          "aircraft",
          "aircraft#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "HPA"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English proper nouns",
    "English uncomparable adjectives",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Anatomy"
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "HPA (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "hypothalamic-pituitary-adrenal"
        }
      ],
      "categories": [
        "English initialisms",
        "English terms with quotations"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              131,
              134
            ]
          ],
          "ref": "2008, Helmut Vedder, edited by Adriana del Rey, George Chrousos, and Hugo Besedovsky, The Hypothalamus-Pituitary-Adrenal Axis (NeuroImmune Biology), volume 7, →ISBN, →ISSN, page 25:",
          "text": "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 […].",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of hypothalamic-pituitary-adrenal."
      ],
      "links": [
        [
          "hypothalamic",
          "hypothalamic#English"
        ],
        [
          "pituitary",
          "pituitary#English"
        ],
        [
          "adrenal",
          "adrenal#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "not-comparable"
      ]
    }
  ],
  "word": "HPA"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English proper nouns",
    "English uncomparable adjectives",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Anatomy"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "HPA",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Health Protection Agency"
        }
      ],
      "categories": [
        "British English",
        "English initialisms",
        "English terms with historical senses"
      ],
      "glosses": [
        "Initialism of Health Protection Agency."
      ],
      "links": [
        [
          "Health Protection Agency",
          "w:Health Protection Agency"
        ]
      ],
      "raw_glosses": [
        "(UK, historical) Initialism of Health Protection Agency."
      ],
      "tags": [
        "UK",
        "abbreviation",
        "alt-of",
        "historical",
        "initialism"
      ]
    }
  ],
  "word": "HPA"
}

Download raw JSONL data for HPA meaning in English (3.2kB)


This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2026-08-28 from the enwiktionary dump dated 2026-08-05 using wiktextract (872fc7b and 4deed51). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.