holdfast
/ˈhoʊldˌfæst/
noun
- A structure that attaches an organism, such as a seaweed or kelp, to a surface like a rock or the seafloor.
- The kelp uses a strong holdfast to anchor itself to the ocean floor.
- The holdfast of the algae was firmly attached to the rocky shore.
- Marine biologists studied how the holdfast of the seaweed helps it survive strong currents.
- A device or object used to grip or secure something firmly in place.
- The old holdfast was rusted, but it still held the rope securely.
- The blacksmith used a holdfast to keep the hot metal steady on the anvil.
- A holdfast on the workbench clamped the wood tightly during carving.