1. fluid
Blood is the fluid responsible for the circulation of nutrients.
People without teeth have to eat fluids.
There was a thick green fluid in the bottle.
They say amniotic fluid has roughly the same composition as sea water.
Some fluid is leaking into our office.
This fluid can be substituted for glue.
Water is a fluid.
Language in particular is the most fluid of mediums.
The principle difference between lettering and typography is that typography is based on fonts, which are static letterforms, and letter shapes formed by lettering are fluid and malleable.
Animals have bodies largely composed of fluid.
Time is viewed as something fluid, with schedules and priorities being easily shifted or changed.
fluid movement
a fluid political situation
His painting became more fluid.
You want to have a lot of fluid in your system before giving blood.