folding backrest
The term 'respaldo abatible' in Spanish translates to 'folding backrest' in English. This particular term is often used in reference to furniture, specificially referring to a type of backrest that can be folded down for convenience or space-saving purposes. It is commonly found in designs of chairs, beds, or couches where the backrest has a functional capability to be folded down when required.
The chair has a foldable backrest.
In this example, the sentence is about a chair that has a functional part, a backrest that can be folded.
The foldable backrest of the chair facilitates its storage.
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The old car still has a foldable backrest.
This sentence is talking about an old car which still has a foldable backrest, implying this is a desirable feature that the car has retained despite its age.