An item of jewellery designed to be fitted through a piercing (sense 2).
A hole made in the body so that jewellery can be worn through it.
Appearing to look deeply into; penetrating.
Of sound, loud and sharp; shrill.
Of temperature, extremely cold so that it penetrates through clothing and shelter.
Something triturated, especially dental amalgam.
The act of triturating; grinding to a fine powder.