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holdfast::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | fastener, fastening, fixing |
| Type of | restraint, constraint |
| Has types | button, carabiner, catch, clasp, cleat, clinch, clip, clothes peg, clothes pin, clothespin, corrugated fastener, cottar, cotter, cringle, dowel, dowel pin, eyelet, fillet, grommet, grummet, hook and eye, joggle, karabiner, knot, lashing, link, linkup, lock, locker, loop, nail, nut and bolt, paper fastener, pin, press stud, screw, seal, sealing wax, slide fastener, snap, snap fastener, snap ring, stopping, tie, tie-in, toggle, toggle bolt, wiggle nail, zip, zip fastener, bellyband, zipper, buckle |
| Derivation | hold fast |
Examples of holdfast
holdfast
The holdfast is the structure at the tip of the stalk, a thin extension of the cell.
From the sciencedaily.com
The holdfast, a root-like structure, anchors the kelp to the substrate of the ocean.
From the en.wikipedia.org
A lot of bacterial species use a similar holdfast to stick to surfaces and form biofilms.
From the sciencedaily.com
The fronds can reach 2 m in length and are attached by a holdfast to rocks and boulders.
From the en.wikipedia.org
Caulobacter crescentus with the holdfast at top and the propelling flagellum at the opposite end.
From the sciencedaily.com
The other end of the column was attached to the ocean floor by a holdfast, very much like stalked crinoids.
From the en.wikipedia.org
Thus, the whole animal works like a holdfast.
From the nature.com
Inspiring the invention were the hair-thin holdfast fibers that mussels secrete to stick against rocks in lakes, rivers and oceans.
From the sciencedaily.com
The stalk was usually relatively short, and in some species, was absent, with the holdfast being attached directly to the base of the theca.
From the en.wikipedia.org
- Fastener: restraint that attaches to something or holds something in place
- A holdfast is a root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
- A hold fast is an accessory used on a woodworking workbench to fix a workpiece to the top or side of the bench while it is being worked.
- In some mistletoes, a disc-like swelling at the end of the radicle that forms the first attachment to the host. In this example of an autoparasitic Macrosolen seedling, the holdfast is present and a young epicortical root is emerging from it.
- A process from the base of the thallus for attachment, often disc-like.
- The outgrowths at the base of an algae which hold the plan to the substrate.
- A structure anchoring seaweed to rocks and other hard surfaces.
- The portion of a filamentous or parenchymatous alga that attaches it to the substrate.
- Something that holds, such as a hook, clamp or bolt.
