from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various devices used to fasten something securely.
- n. Biology An organ or structure of attachment, especially the basal, rootlike formation by which certain seaweeds or other algae are attached to a substrate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Something to or by which an object can be securely fastened.
- n. A root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
- n. Actinomycosis.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
- 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.
from The Century Dictionary and Cyclopedia
- n. That which is used to secure and hold something in place; a catch; a hook; a clamp.
- n. Support; hold.
- Holding fast; firm; steady.
- n. The root-like organ of attachment developed by many of the algæ. Also haptere and rhizoid.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. stick to firmly
- n. restraint that attaches to something or holds something in place
hold + fast (Wiktionary)