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bifocal

bi·fo·cal

bifocal

pronunciation:
baI fo kl
parts of speech:
adjective, noun
features:
Word Parts
part of speech: adjective
definition 1: in optics, having two focal lengths.
definition 2: of eyeglasses or contact lenses, having two sections in each lens, one correcting for near vision and one for distant vision.
 
part of speech: noun
definition: (pl.) eyeglasses or contact lenses with separate sections that correct for near and far vision.