| a very thin, flexible glass or plastic strand along which large quantities of information can be transmitted in the form of light pulses: used in telecommunications, medicine, and other fields. |
| optical fiber n. A flexible optically transparent fiber, usually made of glass or plastic, through which light can be transmitted by successive internal reflections. |
| optical fiber
A flexible transparent fiber of extremely pure glass or plastic, generally between 10 and 200 micrometers in diameter, used especially to carry light signals for telecommunication purposes. See more at fiber optics. |
optical fiber
optical fibre
