active transport

ac·tive trans·port
A a


    • US Pronunciation
    • US IPA
    • [ak-tiv verb trans-pawrt, -pohrt]
    • /ˈæk tɪv verb trænsˈpɔrt, -ˈpoʊrt/
    • US Pronunciation
    • US IPA
    • [ak-tiv verb trans-pawrt, -pohrt]
    • /ˈæk tɪv verb trænsˈpɔrt, -ˈpoʊrt/

Definitions of active transport words

  • noun active transport a process by which molecules are enabled to pass across a membrane from a region in which they are in a low concentration to one of high concentration; this requires the expenditure of energy in metabolism and is assisted by carrier proteins, commonly referred to as pumps 3
  • noun active transport the passage of ions or molecules from one side of a cell membrane to another in opposition to inhibiting conditions, as osmotic equilibrium, by means of energy released in cell metabolism 3
  • noun active transport the movement of ions or molecules across a cellular membrane from a lower to a higher concentration, requiring the consumption of energy. 1
  • noun active transport (transportation planning) Walking and cycling as means of travel. 0

Information block about the term

Origin of active transport

First appearance:

before 1960
One of the 3% newest English words
First recorded in 1960-65

Historical Comparancy

Parts of speech for Active transport


active transport popularity

This term is known only to a narrow circle of people with rare knowledge. Only 29% of English native speakers know the meaning of this word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

active transport usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

Matching words

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