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   ul·tra-fine

   adjective

   • 1. extremely fine in size, texture, composition, etc.: "the ultra-fine particles emitted by diesel vehicles"

   Scrabble Points: 12

   • U

     1

   • L

     1

   • T

     1

   • R

     1

   • A

     1

   • -

   • F

     4

   • I

     1

   • N

     1

   • E

     1

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