fu·cus 
(fykəs)
(fykəs)n.
Any of various brown algae of the genus Fucus, which includes many of the rockweeds.
[Latin fūcus, seaweed, orchil, from Greek phūkos.]
- lighthouse
- lighting
- light into
- lightly
- light meter
- light mill
- light-minded
- light-mindedly
- light-mindedness
- lightness
- lightness
- lightning
- lightning arrester
- lightning bug
- lightning chess
- lightning rod
- light opera
- light out
- light pen
- light plane
- lightplane
- light pollution
- lightproof
- light rail
- light-rail