noun
1. a fossilized cast or impression of algae of the order Fucales
• Hypernyms: ↑fossil
• Member Holonyms: ↑Fucales, ↑order Fucales
2. any of various algae of the family Fucaceae
• Syn: ↑fucoid algae
• Hypernyms: ↑brown algae
• Member Holonyms: ↑Fucaceae, ↑family Fucaceae
Useful english dictionary. 2012.