holdfast

Plural: holdfasts

Noun

• A device for fastening something securely.
• restraint that attaches to something or holds something in place
• Something to or by which an object can be securely fastened.
• A root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
• Actinomycosis.
• The aspect of a character that experiences destructive temptation.

Examples

• His strategy was a HOLDFAST, unyielding against his opponent’s best efforts.

Synonyms

fastener, fastening, fixing