Definition of planish in English:

planish

verb

[WITH OBJECT]
  • Flatten (sheet metal) with a smooth-faced hammer or between rollers.

    • ‘Once I got the shape I wanted, I then planished the metal to smooth out the bumps and wrinkles.’
    • ‘To obtain full strength, the metastable beta alloys are welded in the annealed condition; the weld is cold worked by planishing, and the weldment is then solution treated and aged.’

Origin

Late Middle English (in the sense ‘make level’): from obsolete French planiss-, lengthened stem of planir ‘to smooth’, from plain ‘smooth, level’.

Pronunciation

planish

/ˈplænɪʃ//ˈplaniSH/