American Heritage® Dictionary of the English Language, Fourth
Edition - n. A small entrance hall or passage between the outer
door and the interior of a house or building. - n. An enclosed
area at the end of a passenger car on a railroad train. - n.
Anatomy A cavity, chamber, or channel that leads to or is an
entrance to another cavity: the vestibule to the ear. Century
Dictionary and Cyclopedia - n. In Bryozoa of the suborder
Cryptostomata, a tubular shaft which lies above and leads to the
mouth of the zoœcium. This vestibule or vestibular shaft may be
crossed by diaphragms or hemisepta and is surrounded by
vesicular tissue or a solid calcareous deposit. - n. In car-
building, a car-platform inclosed above and on two sides and
connected by a bellows-like extension with the similarly
inclosed platform of next car. Each extension carries an iron
doorframe called a face-plate. When two cars are coupled
together the opposing face-plates are pressed together by
springs, which at the same time allow them to slip ov