An unintended cavity filled with air in a casting product.
A top-facing opening to a cavity in the ground very near an ocean's shore, leading to a marine cave from which wave water or bursts of air are expelled.
The spiracle, on the top of the head, through which cetaceans breathe.
A vertical opening in the top of a computer case that lets hot air (primarily from the CPU heat sink) escape quickly.
A vent for the escape of steam or other gas.
To fill or be filled with air in an unintended cavity.
A sheave or small wheel in a pulley.
A small wedge, as for fastening the bolt of a window shutter.
Collective noun for a group of sharks
A bodily response to early hypothermia.ᵂᵖ
The act of shivering.
A fragment or splinter, especially of glass or stone.
A variety of blue slate.
To tremble or shake, especially when cold or frightened.
To cause to shake or tremble, as a sail, by steering close to the wind.
To break into splinters or fragments.