SINCE 1828
portal system
nounDefinition of portal system
: a system of veins that begins and ends in capillaries
Keep scrolling for more
Keep scrolling for more
Comments on portal system
What made you want to look up portal system? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Musical Words Quiz
-
- Which word describes a musical performance marked by the absence of instrumental accompaniment?
Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Share portal system
Resources for portal system