fluid

名词 fluid:

1. a substance that is fluid at room temperature and pressure
2. a continuous amorphous substance that tends to flow and to conform to the outline of its container: a liquid or a gas

形容词 fluid:

1. subject to change; variable
   同义词：unstable
2. characteristic of a fluid; capable of flowing and easily changing shape
   同义词：runny
3. smooth and unconstrained in movement
   同义词：fluent, liquid, smooth
4. in cash or easily convertible to cash
   同义词：liquid
5. affording change (especially in social status)
   同义词：mobile

1. Air is a fluid but not a liquid, while water is both a fluid and a liquid.
   空气是流体不是液体，水是流体也是液体。
2. Did the cleaning fluid work (on that stain)? ie Did it remove it?
   这种洗涤剂(对那块污斑)管用吗?
3. The rate of flow of fluid, particles, or energy through a given surface.
   流动率流体、微粒或能量通过一设定的表面时流动的速率
4. Air whether in the gaseous or liquid state is a fluid.
   空气，无论是气态的还是液态的，都是一种流体。

flu.id

n.Abbr. fl,fl.（名词）缩写 fl,fl.
A continuous, amorphous substance whose molecules move freely past one another and that has the tendency to assume the shape of its container; a liquid or gas.
流体：一种分子之间能自由移动并有随容器形状变化趋势的连续的、无定形的物质；液体或气体
adj.（形容词）
Of, relating to, or characteristic of a fluid.
流体的：流体的、有关流体的或有流体特性的
Readily reshaped; pliable.
易被重塑的；柔韧的
Smooth and flowing; graceful:
流畅的，优美的：顺畅而有流动感的；优雅的：
例句：
the fluid motion of a cat.
猫的优美动作

Changing or tending to change; variable:
变化的：变化的或有变化趋势的；可变的：
例句：
a fluid situation fraught with uncertainty.
充满不稳定因素的动荡局势

Characterized by or allowing social mobility:
社会脉动的：以社会可动性为特征的或允许社会变动的：
例句：
.Everyone seems to . . . share in an intricate set of lore from the past and present whose deliciousness somehow would be ruined if Britain were a truly fluid society.(Nicholas Lemann)
.每个人看上去…都拥有这样一套从过去和现在的经历中得来的复杂的知识，而如果英国社会动脉真的不流畅的话，这种知识的有趣就将或多或少地遭到破坏.(尼古拉斯·里曼恩)

Convertible into cash:
可兑换成现金的：
例句：
fluid assets.
流动资产

来源：
From Middle English [flowing]
源自 中古英语 [流动]
from Old French fluide
源自 古法语 fluide
from Latin fluidus
源自 拉丁语 fluidus
from fluere [to flow] * see bhleu-
源自 fluere [流] *参见 bhleu-

【引伸】
fluid.ity
flu.idly
adv.（副词）