Holdfast

ahd-5
  • noun. Any of various devices used to fasten something securely.
  • noun. An organ or structure of attachment, especially the basal, rootlike formation by which certain seaweeds or other algae are attached to a substrate.
  • The Century Dictionary and Cyclopedia
  • noun. That which is used to secure and hold something in place; a catch; a hook; a clamp.
  • noun. Support; hold.
  • Holding fast; firm; steady.
  • noun. The root-like organ of attachment developed by many of the algæ. Also haptere and rhizoid.
  • the GNU version of the Collaborative International Dictionary of English
  • noun. Something used to secure and hold in place something else, as a long flat-headed nail, a catch a hook, a clinch, a clamp, etc.; hence, a support.
  • noun. A conical or branching body, by which a seaweed is attached to its support, and differing from a root in that it is not specially absorbent of moisture.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. Something to or by which an object can be securely fastened.
  • noun. A root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
  • noun. Actinomycosis.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • verb. stick to firmly
  • noun. restraint that attaches to something or holds something in place
  • Word Usage
    "But now of the holdfast, which is our special subject."
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    disk  hold  holder  sucker  tentacle