Englishfor English speakers
suspended
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adjective
(of undissolved particles in a fluid) supported or kept from sinking or falling by buoyancy and without apparent attachment
suspended matter such as silt or mud...
dust particles suspended in the air
droplets in suspension in a gas
material
Noun
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Material is the things or ideas that are used in making or doing something.
The raw materials for the goods are mostly imported from Canada.
After the earthquake, it took a long time to rebuild because the building materials were often unavailable.
He spent a year researching and gathering material before writing the book.
material
Adjective
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Material things are things in the real world, often money.
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If something is material, it is big and important.
concentration
Noun
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A concentration is a large amount of something in one place or group.
The oil-sands in Alberta, Canada, contain high concentrations of oil.
The growing concentration of people in cities is causing new problems.
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Concentration is the ability to focus your attention on something.
Runners mustn't worry or do anything else to break their concentration.
A clean desk in a quiet place will help students improve concentration.
The government's concentration should be on helping those in the greatest need.
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The amount of solute in a solution; the concentration of a solution is measured in parts per million (ppm)