planometer

[ pluh-nom-i-ter ]

noun

, Machinery.

1. surface plate.

planometer

/ plæˈnɒmɪtə; ˌpleɪnəˈmɛtrɪk /

noun

1. a flat metal plate used for directly testing the flatness of metal surfaces in accurate metalwork

Derived Forms

• ˌplanoˈmetrically, adverb
• planometric, adjective
• plaˈnometry, noun

Other Words From

• pla·nome·try noun

Word History and Origins

Origin of planometer¹

An Americanism dating back to 1860–65; plano- ¹ + -meter

Example Sentences

For testing the truth of flat or plane surfaces the machinist employs the surface plate or planometer.

From Project Gutenberg