ˈkavəd.ē, -ətē, -i noun
( -es )
Etymology: Middle French cavité, from Late Latin cavitas hollowness, from Latin cavus hollow + -itas -ity — more at cave
: a three-dimensional discontinuity in the substance of a mass or body : a space within a mass
a water-filled cavity in limestone
also : a space hollowed out (as by decay)
teeth full of cavities
an old cavity excavated by a woodpecker — John Burroughs