Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Origin: proliferation

proliferate

verb
     
pro‧lif‧e‧rate [intransitive]
if something proliferates, it increases quickly and spreads to many different places:
Computer courses continue to proliferate.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary