Definition of passive transport
: the movement of substances (as by diffusion) across a cell membrane without the expenditure of energy — compare active transport
Keep scrolling for more
Comments on passive transport
What made you want to look up passive transport? 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?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share passive transport
Time Traveler for passive transport
The first known use of passive transport was in 1953
See more words from the same year