verb (used with object)

to unite or fuse (as pieces of metal) by hammering, compressing, or the like, especially after rendering soft or pasty by heat, and sometimes with the addition of fusible material like or unlike the pieces to be united.
to bring into complete union, harmony, agreement, etc.

verb (used without object)

to undergo welding; be capable of being welded: a metal that welds easily.


a welded junction or joint.
the act of welding or the state of being welded.

Nearby words

  1. welcome,
  2. welcome mat,
  3. welcome to, be,
  4. welcome wagon,
  5. welcoming,
  6. weld, theodore dwight,
  7. welded tuff,
  8. welder,
  9. welding,
  10. welding rod

Origin of weld

1590–1600; variant of well2 in obsolete sense “to boil, weld”

Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unwelded

British Dictionary definitions for unwelded



Sir Frederick Aloysius. 1823–91, New Zealand statesman, born in England: prime minister of New Zealand (1864–65)




(tr) to unite (pieces of metal or plastic) together, as by softening with heat and hammering or by fusion
to bring or admit of being brought into close association or union


a joint formed by welding
Derived Formsweldable, adjectiveweldability, nounwelder or weldor, nounweldless, adjective

Word Origin for weld

C16: variant probably based on past participle of well ² in obsolete sense to boil, heat



wold or woald (wəʊld)


a yellow dye obtained from the plant dyer's rocket
another name for dyer's rocket

Word Origin for weld

C14: from Low German; compare Middle Low German walde, waude, Dutch wouw

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

Word Origin and History for unwelded
Online Etymology Dictionary, © 2010 Douglas Harper