| NOUN | animal | rockweed | coarse brown seaweed growing on rocks exposed at low tide |
|---|
| Meaning | coarse brown seaweed growing on rocks exposed at low tide. | |
|---|---|---|
| Member of | Fucaceae, family Fucaceae | small family of brown algae |
| Narrower | bladderwrack, black rockweed, bladder fucus, tang, Fucus vesiculosus | A common rockweed used in preparing kelp and as manure |
| bladderwrack, Ascophyllum nodosum | Similar to and found with black rockweed | |
| fucus | Any member of the genus Fucus | |
| Broader | brown algae | algae having the chlorophyll masked by brown and yellow pigments |
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