We found 20 dictionaries that define the word portal system:

General (11 matching dictionaries)

1. portal system: Merriam-Webster
2. portal system: Oxford Learner's Dictionaries
3. portal system: American Heritage Dictionary of the English Language
4. portal system: Vocabulary.com
5. portal system: Infoplease Dictionary
6. portal system: Dictionary.com
7. Portal system: Wikipedia, the Free Encyclopedia
8. portal system: Rhymezone
9. portal system: FreeDictionary.org
10. portal system: Mnemonic Dictionary
11. portal system: TheFreeDictionary.com

Business (2 matching dictionaries)

12. portal system: Legal dictionary
13. portal system: Financial dictionary

Computing (1 matching dictionary)

14. portal system: Encyclopedia

Medicine (6 matching dictionaries)

15. portal system: Merriam-Webster Medical Dictionary
16. Dorland's Illustrated Medical Dictionary (No longer online)
17. Medical Dictionary (No longer online)
18. online medical dictionary (No longer online)
19. Hepatitis C Information Central (No longer online)
20. portal system: Medical dictionary

(Note: See portal_systems as well.)

Definitions from WordNet (portal system) ▸ noun:  system of veins that carry blood from the abdominal organs to the liver Opposite: non-portal system, direct system Phrases: Hepatic portal system, Renal portal system, pituitary portal system, hepatic portal venous system, Hypophyseal portal system, more... ▸ Words similar to portal system ▸ Usage examples for portal system ▸ Idioms related to portal system ▸ Wikipedia articles (New!) ▸ Words that often appear near portal system ▸ Rhymes of portal system ▸ Invented words related to portal system