bifocal

bifocal Definition

☆ bi·fo·cal (bī fō′kəl, bī′fō′-)

adjective

adjusted to two different focal lengths

noun

a lens, esp. for eyeglasses, with one part ground for close focus, as for reading, and the other ground for distance

bifocal Usage Examples

Modifies a noun

lens: Your optician will have advised you whether bifocal lenses are a suitable choice for your needs.
glass: Bifocal glasses can contribute to balance problems for some people.
spectacle: If you wear bifocal spectacles you end up like a nodding donkey trying to focus on different parts of a screen!
option: Some frame styles are not suitable for bifocal lenses and, on the website, these do not offer the bifocal option.

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