You searched for: “penetrameter
penetrometer (s) (noun), penetrometers (pl); (alternate forms:) penetrameter (s), penetrameters (pl)
1. An instrument for measuring the comparative absorption of roentgen rays: The penetrometer gives a rough estimation of the ability of X-rays to penetrate bodily tissues.

A penetrometer measures the penetrating power of a beam of electromagnetic radiation.

2. A device for measuring the power of something; such as, an X-ray to pass through semisolids or other materials: Penetrometers compare the absorption of roentgen rays in various metals; especially, silver, lead, and aluminum.
This entry is located in the following unit: penetra-, penetr- (page 2)