Englishfor English speakers
coupling
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noun
(= yoke)
a connection (like a clamp or vise) between two things so they move together
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noun
a mechanical device that serves to connect the ends of adjacent objects
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noun
(= mating, pairing)
the act of pairing a male and female for reproductive purposes
the casual couplings of adolescents
the mating of some species occurs only in the spring
filter
Noun
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A filter is a piece of equipment that put gas or liquid through to take out the parts you don't want, to clean it.
Car engines have a fuel filter to keep the fuel clean.
filter
Verb
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If you filter a gas or a liquid, you put it through something that takes out the parts you don't want.
We filter the water.