Definition of "sandcastle" []

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

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "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,"
• "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."
• ""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."