Able to be folded or compressed into a smaller shape or space, especially by design.
From Latin 'collabere' (to collapse) with English suffix '-ible' (capable of being). Became common in English during the Victorian era as manufacturers created collapsible furniture and containers.
Collapsible designs are everywhere now—from pop-up tents to telescoping hiking poles—because humans realized that making things fold up saves space and money, which is why your smartphone isn't twice as thick.
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