fluid

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fluid,

any substance that is able to flow. Of the four states of matterstates of matter,
forms of matter differing in several properties because of differences in the motions and forces of the molecules (or atoms, ions, or elementary particles) of which they are composed.
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, only a solidsolid,
one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from liquid and gas, in which a substance has both a definite shape and a definite volume.
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 is not a fluid, since it has a definite shape that is not readily changed. Any liquidliquid,
one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from solid and gas, in which a substance has a definite volume but no definite shape.
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, gasgas,
in physics, one of the three commonly recognized states of matter, the other two being solid and liquid. A substance in the gaseous state has neither definite shape nor definite volume. Like liquids, gases are fluids and assume the shape of their containers.
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, or plasmaplasma,
in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is affected by magnetic fields.
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 is classed as a fluid.

fluid

[′flü·əd]
(physics)
An aggregate of matter in which the molecules are able to flow past each other without limit and without fracture planes forming.

fluid

1. a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stress
2. capable of flowing and easily changing shape
References in periodicals archive ?
Due to the ethanol content of the fluid extracts contained in BRO, a mixture of genuine thyme herb dry extract and genuine ivy leaf liquid extract lyophilisate with identical composition (calculated as the ratio of the herbal substances) as contained in BRO (termed "BRO analogue") was used as a surrogate for studying 5-LO product synthesis in vitro.
The Bradford Assay determined protein concentration of the oyster fluid extracts, and lysozyme activity is reported as the number of RFU per microgram of extract protein.
You can make a homemade fluid extract of calendula by using six ounces of dried marigold flower petals to eight ounces of 180-proof grain alcohol.
Licorice can be a good choice if you are looking for a gentle laxative, again the fluid extract is ideal.
The tested fluid extracts contain polar secondary plant substances such as bitter agents (Menyanthes trifoliata L.
Therapeutic profile of a Plantaog lanceolata fluid extract (PLFE) in acuta respiratory disease (ARD).
Firstly, for the circulatory system I make a fluid extract of hawthorn, lily of the valley, dandelion root, mistletoe, bayberry, motherwort and capsicum.
Passion flower: This needs to be in the form of a fluid extract and is remarkable for the treatment of insomnia and nerve irritation.