Meaning of penetrometer

pen•e•trom•e•ter

Pronunciation: (pen"i-trom'i-tur), [key]
— n.
  1. a device for measuring the penetrating power of x-ray or other radiations.
  2. a device for measuring the penetrability of a solid.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.