(Science: anatomy) A train of passenger cars having the space between the end doors of adjacent cars inclosed, so as to admit of leaving the doors open to provide for intercommunication between all the cars.
Synonym: Hall, passage.
Vestibule, Hall, passage. A vestibule is a small apartment within the doors of a building. A hall is the first large apartment beyond the vestibule, and, in the united states, is often long and narrow, serving as a passage to the several apartments. In England, the hall is generally square or oblong, and a long, narrow space of entrance is called a passage, not a hall, as in America. Vestibule is often used in a figurative sense to denote a place of entrance. The citizens of Rome placed the images of their ancestors in the vestibules of their houses.
Origin: L. Vestibulum, of uncertain origin: cf. F. Vestibule.
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... a 50A beta-barrel stem protruding from the cap domain through the lipid bilayer into the cell's interior. The cap of the protein conceals a large vestibule connected to the cell's exterior through a large opening at the top of the cap. The narrowest (1.4~nm in diameter) part of the channel is ...
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