
1) Buckle 2) Button 3) Carabiner 4) Clamp 5) Clasp 6) Clothespin 7) Cringle 8) Dowel 9) Fastening 10) Grommet 11) Grummet 12) Joggle 13) Karabiner 14) Linkup 15) Lock 16) Loop 17) Seal 18) Stopping 19) Zipper
Found on
https://www.crosswordclues.com/clue/holdfast

1) Catch or clamp 2) Cling 3) Constraint 4) Fastener 5) Fastening 6) Fixing 7) Hang on tightly 8) Restraint
Found on
https://www.crosswordclues.com/clue/holdfast

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. Holdfasts vary in shape and form depending on both the species and the substrate type. The holdfasts of organisms that live in muddy substrates often have complex tan...
Found on
http://en.wikipedia.org/wiki/Holdfast

• (n.) 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. • (n.) Something used to secure and hold in place something else, as a long fiat-headed nail, a catch a hook, a clinch, a clamp, etc.; hence, a support.Holdfast: words in the defin...
Found on
http://thinkexist.com/dictionary/meaning/holdfast/

(from the article `echinoderm`) Stalked crinoids (sea lilies), so called because they have stems, generally are firmly fixed to a surface by structures at the ends of the stalks ... Associated with locomotion is the need for maintaining position in the water, particularly in the rapid torrents of mountain streams. A variety of ... .....
Found on
http://www.britannica.com/eb/a-z/h/61

a part of a plant that clings to a flat surface.
Found on
http://www.encyclo.co.uk/local/20003

1. Something used to secure and hold in place something else, as a long fiat-headed nail, a catch a hook, a clinch, a clamp, etc.; hence, a support. 'His holdfast was gone.' ... 2. <botany> 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. Ã...
Found on
http://www.encyclo.co.uk/local/20973

An adhesive material at a localised position on a cell, enabling the cell to attach to a surface.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Hold'fast` noun 1. 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. 'His
holdfast was gone.'
Bp. Montagu. 2. (Botany) A conical or branching body, by which a seaweed is...
Found on
http://www.encyclo.co.uk/webster/H/53

a thing or place that holds something secure, a sucker-like root that secures a seaweed to the rock.
Found on
http://www.seafriends.org.nz/books/glossary.htm

Anchoring base of an alga.
Found on
http://www.ucmp.berkeley.edu/glossary/gloss8botany.html

Anchoring base of an alga.
Found on
http://www.ucmp.berkeley.edu/glossary/glossary_8.html

something used to hold or secure a thing in place; a catch, hook, clamp, etc. · any of several rootlike or suckerlike organs or parts serving for attachment.
Found on
https://www.infoplease.com/dictionary/holdfast
No exact match found.