ultranarrow

English

Etymology

From ultra- +‎ narrow.

Adjective

ultranarrow (comparative more ultranarrow, superlative most ultranarrow)

1. Extremely narrow.
   • 2008 March 24, John Markoff, “Replacing Wire With Laser, Sun Tries to Speed Up Data”, in New York Times‎:

     However, the new approach, which is based on the company’s ability to accurately align chips with high precision making it possible to transmit beams of light across the surface of the chips in ultranarrow channels called wave guides, could have a much bigger impact.