contact-lens
Meaning
A thin lens placed directly on the surface of the eye to correct vision or for cosmetic or therapeutic reasons.
Structure
Usage
She finds contact-lenses more convenient for sports than glasses.
Daily disposable contact-lenses help reduce the risk of eye infections.
The optometrist fitted him for a new type of silicone hydrogel contact-lens.
Etymology
The term is a modern compound, precisely describing the device's function through its two classical components. "Contact" originates from the Latin verb contingere, meaning "to touch," which itself is built from com- (together) and tangere (to touch). "Lens" comes directly from the Latin word for "lentil," lens, because the shape of early glass lenses resembled that legume. The compound "contact lens" thus logically denotes a "touching lentil," a lens that makes direct physical contact with the eye, in contrast to traditional spectacles. This transparent etymology perfectly captures the invention's defining characteristic.
Analysis
- contact: From Latin contactus (a touching), from contingere (to touch). Functions as a modifier describing the lens's mode of action. - lens: From Latin lens (lentil), due to the shape similarity. Functions as the core noun, the object itself.