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holdfast

holdfast

1 8.4
A part or device that keeps something firmly in place
  • noun
  • /ˈhoʊldˌfæst/
  • Specialized
translation icon : fijación
  • Storms may cause substantial mortality by tearing seahorses loose from holdfasts and casting them adrift to wash up on shore.

Examples

  • When she is ready to transfer eggs, the female releases the holdfast and stretches upward—"points"—as if to rise to the surface, keeping her tail tip on the ground.

    Academic text (1990)
  • The rock climber used a metal holdfast to ensure his safety on the steep cliff.

  • At frequent intervals, the pair make their way, in tight parallel formation, across the bottom to another holdfast.

    Academic text (1990)
  • Both then settle down on the bottom with their tails wrapped around holdfasts.

    Academic text (1990)
  • The tail is prehensile and so strong that seahorses often cannot be pried loose from a holdfast.

    Academic text (1990)
  • Both seahorses grasp the same holdfast with their tails and, using it as a pivot, begin to circle like merry-go-round horses.

    Academic text (1990)
  • They went through another passage, tugging themselves along by holdfasts, and came out on the naked curve of the hull.

    Fiction book (1991)
  • The sailor secured the boat to the dock using a strong holdfast.

  • The artist attached her canvas to the easel with a sturdy holdfast for stability.

Synonyms

catch
vsholdfast
52 5.6

A device that holds or locks something closed

is broader, applying to any attaching part not only locking mechanisms
fixing
vsholdfast
  • UK
13 3.4

A part used to hold something in place

is the broader structural part that keeps items steady in place
fastener
vsholdfast
7 3.2

A thing that holds two parts together, like a button or zipper

is the single structural element that keeps objects together rather than a joiner
fastening
vsholdfast
2 3.9

A thing that holds two parts together so they stay secure

refers specifically to a solid structural part that keeps things steady
holding device
vsholdfast
  • Specialized
1 3.6

A tool that keeps something steady in one place

is a general attaching part or structure rather than a special tool
holdback
vsholdfast
1 4.3

A reason that stops progress or keeps something in place

is a device meant to attach objects, not to block progress
securement
vsholdfast
7.0

A device or method that keeps something from moving

is specifically a physical part or structure that attaches objects together

Antonyms

4 6.1

The act of separating something from the thing it is connected to

1 2.5

A small gap or movement between parts that should be tight

How Secure

to anchor
51 3.4
holdfast
  • Specialized
1 8.4
bolt
  • Specialized
42 3.8
to clamp
47 3.3
bracket
17 3.8
clip
152 1.3

Surface Forms

holdfast singular
holdfasts plural

Morphology

holdfast = hold + fast (transparent) = hold + fast

The noun is a straightforward compound of 'hold' + 'fast' (i.e., something that holds firmly), so its meaning is directly inferable from its parts.

Etymology

Holdfast is made from the simple words hold ('to keep') and fast ('firmly' or 'fixed'), so it literally means something that holds tightly in place. A helpful image is a clamp that keeps cables safe or the part of seaweed that clings to rocks, which shows why a holdfast secures things firmly.