<apparatus> An instrument for measuring thickness, as of the glass of a mirror, or of paper; a pachymeter. ... Origin: Gr. Thickness. ... (24 Mar 1998) ... Found on http://www.encyclo.co.uk/local/20973
Pa·chom'e·ter noun [ Greek pa`chos thickness + -meter .] (Physics) An instrument for measuring thickness, as of the glass of a mirror, or of paper; a pachymeter. Found on http://www.encyclo.co.uk/webster/P/1
A pachometer or pachymeter is an instrument used for measuring thickness such as the tickness of the glass of a mirror, or the thickness of paper. Found on http://www.probertencyclopaedia.com/browse/GP.HTM