• substance whose molecules move freely and that tends to take the shape of its container (i.e. liquid or gas)
• of a substance that can easily change its shape; flexible, changeable; smooth, graceful; easily converted into cash
• a fluid is a substance that can flow, especially a liquid. noun here but can also be used as an adjective. e.g. after a month it was still completely fluid at the centre.
• a situation, idea, or arrangement that is fluid is likely to change, or can be changed.
• branch of fluid mechanics that is concerned with the properties of fluids in motion
• alcoholic solution of a vegetable drug; concentrated solution drawn out from a fruit vegetable or other source
• applied science embodying the basic principles of gaseous and liquid flow
• a fluid ounce is a unit of volume for liquids. there are twenty fluid ounces in an imperial pint, and sixteen in an american pint.
• savings that can be quickly converted to cash; funds that have not yet been permanently invested
• liquid-like substance filling the membranous sac that surrounds a fetus in the womb
• correcting fluid is an opaque, usually white, liquid which is used to cover over errors in written or typed work.
• white liquid generated by males which contains sperm
• viscous fluid secreted by a synovial membrane and used to lubricate joints (anatomy)