n.
Function: noun
Date: 1661
: a substance (as a liquid or gas) tending to flow or conform to the outline of its container
– flu · id · al \ ' flü- ə -d ə l \ adjective
– flu · id · al · ly \ -d ə l- ē \ adverb
– flu · id · like \ - ˌ l ī k \ adjective