This shows grade level based on the word's complexity.
fluid
[ floo-id ]
/ Ëflu ÉȘd /
Save This Word!
This shows grade level based on the word's complexity.
noun
a substance, as a liquid or gas, that is capable of flowing and that changes its shape at a steady rate when acted upon by a force tending to change its shape.
adjective
pertaining to a substance that easily changes its shape; capable of flowing.
consisting of or pertaining to fluids.
changing readily; shifting; not fixed, stable, or rigid:fluid movements.
convertible into cash: fluid assets.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?
Origin of fluid
First recorded in 1595â1605; from Latin fluidus, equivalent to flu(ere) âto flowâ + -idus adjective suffix; see -id4
synonym study for fluid
2. See liquid.
OTHER WORDS FROM fluid
Words nearby fluid
fluff, fluffer, fluffy, flĂŒgelhorn, flugelman, fluid, fluid coupling, fluid dram, fluid drive, fluid dynamics, fluidextract
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use fluid in a sentence
British Dictionary definitions for fluid
fluid
/ (ËfluËÉȘd) /
noun
a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stress
adjective
capable of flowing and easily changing shape
of, concerned with, or using a fluid or fluids
constantly changing or apt to change
smooth in shape or movement; flowing
Derived forms of fluid
fluidal, adjectivefluidness, nounfluidly or fluidally, adverbWord Origin for fluid
C15: from Latin fluidus, from fluere to flow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for fluid
fluid
[ flĆĆâČÄd ]
A state of matter, such as liquid or gas, in which the component particles (generally molecules) can move past one another. Fluids flow easily and conform to the shape of their containers. See also state of matter viscosity.
The American HeritageÂź Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for fluid
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.