1. A common rockweed used in preparing kelp and as manure
   "They collected bladderwrack to fertilize their garden";
   - black rockweed, bladder fucus, tang, Fucus vesiculosus
    
2. Similar to and found with black rockweed
   "The tide pools were full of bladderwrack";
   - Ascophyllum nodosum

Derived forms: bladderwracks

Type of: rockweed

Part of: genus Fucus

Encyclopedia: Bladderwrack