holdfast

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English[edit]

a workbench holdfast

Etymology[edit]

hold +‎ fast

Noun[edit]

holdfast (plural holdfasts)

  1. Something to or by which an object can be securely fastened.
  2. (zoology) A root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
  3. (archaic, medicine) Actinomycosis.

See also[edit]