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

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

Alternative spelling of fibre optics

(pathology) A benign tumour of the uterus that is composed of either fibrous connective tissue or muscle. / (pathology) A fibroma.

(pathology) An inherited condition in which the exocrine glands produce abnormally viscous mucus, causing chronic respiratory and digestive problems.

(US) A source of clutter, especially a messy area or room.

(chiefly British spelling) Alternative spelling of carbon fiber

A very strong filament made by the pyrolysis of a synthetic fiber such as rayon. / A cloth or felt made from these fibers.

(American spelling) A material made from wood chips or shavings, which are compressed and bonded with resin and formed into stiff sheets, and used in building or making furniture.

(medicine) The formation of (excess) fibrous connective tissue in an organ.