Englishfor English speakers
collapsible
Adjective
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If something is collapsible, it can be collapsed.
antenna
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noun
an electrical device that sends or receives radio or television signals
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noun
sensitivity similar to that of a receptor organ
he had a special antenna for public relations
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noun
one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste