Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A castlelike structure built of wet sand, as by children at a beach.
  • n. Something that lacks substance or significance.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A sculpture made of sand and resembling a miniature castle; typically, but not always, made for fun by a child on a beach.

Etymologies

sand + castle (Wiktionary)

Examples

  • We built a sandcastle in your honour. (then bee smashed it, but that was not a reflection of her feelings about such an auspicious occasion. smashing a sandcastle is just too tempting to pass up.) kittenpie Said,

    OK, so tomorrow I’ll shut up about her birthday already… | Her Bad Mother

  • October 28th, 2009 WASHINGTON - A glue secreted by a tiny sea creature called the sandcastle worm could be the answer to a long-sought medical adhesive, specially for repairing bones broken in battlefield injuries and car crashes.

    Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7

  • "Many smokers have successfully quit using a variety of smoking cessation pharmacotherapies, yet there is little direct evidence on the relative efficacies of these different pharmacotherapies," says Megan E. October 28th, 2009 WASHINGTON - A glue secreted by a tiny sea creature called the sandcastle worm could be the answer to a long-sought medical adhesive, specially for repairing bones broken in battlefield injuries and car crashes.

    Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7

  • It's a home of sorts, occupied by a colony of Phragmatopoma californica, otherwise known as the sandcastle worm.

    NYT > Home Page

  • Scientists questing after a long-sought new medical adhesive describe copying the natural glue secreted by a tiny sea creature called the sandcastle worm in the latest episode in the American Chemical Society's (ACS) award-winning podcast series, "Global Challenges/Chemistry Solutions."

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  • WASHINGTON - In a major breakthrough, researchers have duplicated the natural glue secreted by a tiny sea creature called the sandcastle worm, for developing a long-sought medical adhesive needed to repair bones shattered in battlefield injuries, car crashes and other accidents.

    Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7

  • The beach cake's "sandcastle" is a bit... suggestive.

    The Teacher Tearjerker

  • Can you make 'the sandbox' not just your 'sandcastle' go away, temporarily or forever?

    We Need Community Managers

  • What do a shiny red bicycle, a new wagon, and a sandcastle have in common?

    The Volokh Conspiracy » New Supreme Court Website and New URL

  • Smile once more and close the gate behind us; our open sandcastle is more than a small day out by the sea.

    Carnival

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