▸ دُرج العيّنات
Materials & Substances — Lesson 8
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عيّنة
antibody
ˌæntiˌbɑːdi
any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
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asbestos
æzˈbɛstəs
a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer
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asphalt
ˈæsfælt
mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing
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balm
bɑːm
any of various aromatic resinous substances used for healing and soothing
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bran
bræn
broken husks of the seeds of cereal grains that are separated from the flour by sifting
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brass
bræs
an alloy of copper and zinc
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caffeine
kæˈfiːn
a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
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catalyst
ˈkæt.əl.ɪst
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
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chalk
tʃɔːk
a soft whitish calcite
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charcoal
ˈtʃɑːrkoʊl
a carbonaceous material obtained by heating wood or other organic matter in the absence of air
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chlorine
ˈklɔr.iːn
a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
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cork
kɔːrk
outer bark of the cork oak; used for stoppers for bottles etc.
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