An example of a fluid is water.
An example of fluid is a ballet dancer with flowing movements, called fluid movements.
An example of fluid is the cuttlefish's ability to change its' skin color depending on their background, called a fluid color change.
The fluid motion of a cat.
Origin of fluid
- From Middle English flowing from Old French fluide from Latin fluidus from fluere to flow bhleu- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition