You can also use autoetráctil . It means that it retracts, saves or shrinks on its own, without the need for help or the operation of a device. For example, the lenses of an automatic camera that are focused and retracted without having to operate any device. The same is also true of the foliage of a plant that we call a sleeper or poppy, whose compound leaves retract to be moved only by the wind or touched.
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