Plural: melodeons

1. A musical instrument with a fan-folded zigzagged air bag characteristic of the accordion family.

2. Figuratively, any object or shape resembling the unique appearance of accordions (for example, z-foldable doors, buses or trains with ruffled interconnecting segments, air-blowing devices, etc⋅). Specifically: An articulated bus comprising two or more rigid sections linked by a pivoting joint (articulation) enclosed by protective bellows inside and outside and a cover plate on the floor; banana bus; bendy bus; tandem bus; vestibule bus; wiggle wagon; stretch bus; accordion bus.


Finally, the melodeon's driver was forced to back out of the street. He had to drive reversewise all the way to the nearest intersection to alleviate the imminent traffic jam: The schoolward turn was already usurped by the first bus, while the road in front of and behind him became occluded by cars that made passage impossibly narrow. (Source: J∙ Okram - The Mystery of the Rammed Key.)

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Julion Okram's Word Explainer is a concise dictionary of uncommon, less standard and expert words appearing in mystery thrillers and science fiction adventures. It contains little-known or fictional geographical names, scientific terms, slang, professional jargons, archaisms, dialects, neologisms, composite expressions, etc⋅. Find word definitions, alternative meanings, occasional notes about etymology and stems, and story-related contextual remarks. The entire vocabulary is searchable online. Readers wishing to go offline or have a printed reference at hand can download this full glossary as a wordbook in PDF format.