FLUID

I. adjective Etymology: French or Latin; French ~e, from Latin ~us, from fluere to flow; akin to Greek phlyzein to boil over Date: 1603 1. having particles that easily move and change their relative position without a separation of the mass and that easily yield to pressure ; capable of flowing, subject to change or movement , characterized by or employing a smooth easy style , 3. available for various uses , liquid 4 , ~ly adverb ~ness noun II. noun Date: 1661 a substance (as a liquid or gas) tending to flow or conform to the outline of its container, ~al adjective ~ally adverb ~like adjective