What is the meaning of Fucus?

Any alga of the genus Fucus.

fucus

kelp

seaweed; orchil, orchella weed, Roccella tinctoria

red dye derived from it; dyestuff

rouge

coloring

the reddish bee glue, propolis

pretence, disguise, sham

artificial embellishment of literary style

male bee, drone

unmanned aircraft drone

Source: wiktionary.org