From Longman Dictionary of Contemporary Englishone-pieceˈone-piece adjective [only before noun] DCCconsisting of only one piece, not separate parts a one-piece bathing suit
Examples from the Corpus
one-piece• The one-piece computer is only 9 inches deep; a traditional monitor used with most desktops is about 14 inches deep.• Crabb was also going to wear a black rubber one-piece diving suit made by the Avon Rubber Company.• Andrews snipped and sewed the masterpiece into one-piece garments.• However, these will be one-piece in future, if the actual billets of maple are deep enough to allow it.• The one-piece oscar went to a Leiston man for £105 and the broken one was sold for an amazing £85.• An immense woman in a black one-piece suit sat like a Buddha, surrounded by a group of disco clones.• B Cotton and elastane one-piece suit will please both sun worshippers and serious swimmers. 