We found 19 dictionaries that define the word HPA:

General (7 matching dictionaries)

1. HPA: Merriam-Webster
2. hpa, hPa: Wordnik
3. HPA: Dictionary.com
4. HPA, HPa, Hpa: Wikipedia, the Free Encyclopedia
5. HPA: Stammtisch Beau Fleuve Acronyms
6. HPA: Merriam-Webster
7. HPA: Wiktionary

Computing (4 matching dictionaries)

8. HPA: CCI Computer
9. HPA: Computer Telephony & Electronics Dictionary and Glossary
10. Webopedia (No longer online)
11. HPA: Encyclopedia

Miscellaneous (2 matching dictionaries)

12. HPA: Acronym Finder
13. AbbreviationZ (No longer online)

Science (1 matching dictionary)

14. HPA: Cytokines & Cells Online Pathfinder Encyclopaedia

Slang (1 matching dictionary)

15. hpa: Urban Dictionary

Sports (1 matching dictionary)

16. HPA: Sports Definitions

Tech (3 matching dictionaries)

17. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)
18. Glossary of Meteorology (No longer online)
19. National Weather Service Glossary (No longer online)

Definitions from Wiktionary (HPA) ▸ adjective:  Initialism of hypothalamic-pituitary-adrenal. [Relating to the hypothalamus, the pituitary gland and the adrenal glands.] ▸ noun:  (UK, historical) Initialism of Health Protection Agency. Similar: HHS, MPA, isobarometric, SPL, psi, millibar, PAH, PPB, mmhg, ppm, more... Opposite: aph, low pressure Phrases: hpa axis, more... Adjectives: 500, 200, 250, hso, mild, blunted, 300, fetal, induced, normal, abnormal ▸ Words similar to HPA ▸ Usage examples for HPA ▸ Idioms related to HPA ▸ Wikipedia articles (New!) ▸ Popular adjectives describing HPA ▸ Popular nouns described by HPA ▸ Words that often appear near HPA ▸ Rhymes of HPA ▸ Invented words related to HPA