Main Entry:

ves·ti·bule

Pronunciation:

\ˈves-tə-ˌbyül\

Function:

noun

Etymology:

Latin vestibulum forecourt

Date:

1726

1 a: a passage, hall, or room between the outer door and the interior of a building : lobby b: an enclosed entrance at the end of a railway passenger car2: any of various bodily cavities esp. when serving as or resembling an entrance to some other cavity or space: as a: the central cavity of the bony labyrinth of the inner ear or the parts (as the saccule and utricle) of the membranous labyrinth that it contains b: the part of the left ventricle below the aortic orifice c: the space between the labia minora containing the orifice of the urethra d: the part of the mouth cavity outside the teeth and gums 3: a course that offers access (as to something new)

— ves·ti·buled \-ˌbyüld\ adjective