1. a device used to secure or fasten something firmly in place
2. a structure by which a plant or seaweed attaches itself to a surface
Usage: biology
3. a secure grip or firm grasp

Examples

• The carpenter used a holdfast to secure the wood to the workbench.
• The metal holdfast kept the pipe firmly in position during welding.
• Seaweed uses a holdfast to anchor itself to rocks on the ocean floor.
• The kelp’s holdfast prevented it from being swept away by strong currents.
• She maintained a holdfast on the rope as she climbed down the cliff.
• The climber’s holdfast on the rock face was crucial for safety.