Velcro

[ vel-kroh ]
/ ˈvɛl kroʊ /

Trademark.

the brand name of a type of fastening tape consisting of opposing pieces of fabric, one piece with a dense arrangement of tiny nylon hooks and the other with a dense nylon pile, that interlock when pressed together, used as a closure on garments, luggage, etc., in place of buttons, zippers, and the like.
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British Dictionary definitions for velcro

Velcro
/ (ˈvɛlkrəʊ) /

noun

trademark a fastening consisting of two strips of nylon fabric, one having tiny hooked threads and the other a coarse surface, that form a strong bond when pressed together
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012