(British spelling) A thin, transparent, flexible fibre, made of glass or plastic, used for transmitting light.

Of, or relating to fibre optics, or to optical fibre.

(British spelling) The transmission of light through fine flexible glass or plastic fibres, especially as a medium for communications networks.

Alternative spelling of muscle fiber

fibrocement

Unused optical fibre that is available for use

Alternative form of Purkinje fiber

(UK) The inner strength to do what one believes to be right; often an ability to make difficult decisions.

Having a visible fibre embodied in the surface; applied especially to a kind of paper for cheques, drafts, etc.

Alternative form of milk fiber