English

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Etymology

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From ultra- +‎ thick.

Adjective

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ultrathick (not comparable)

  1. Extremely or exceedingly thick.
    an ultrathick photoresist
    • 2007, Tommy Newberry, The 4:8 Principle[1], →ISBN, page 66:
      You must either develop an ultrathick skin or become a perpetual forgiveness machine — maybe even both.
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