a pair of spectacles with bifocal lenses
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
How to use bifocals in a sentence
I rang the bell, and a geeky, middle-aged man in bifocals stuck his head around the door.
The turnstiles were blocked by a sandwich board: Mickey in a Ben Franklin wig and bifocals, holding a trowel.Down and Out in the Magic Kingdom | Cory Doctorow
That surprised, him, and he eyed me over the top of his bifocals.Cue for Quiet | Thomas L. Sherred
The bifocals had returned to their incongruous perch on the dome of the head.The Brain | Alexander Blade
I removed my glasses to make certain (someday I shall simply have to get bifocals) and saw that it was a foreign cookbook."To Invade New York...." | Irwin Lewis