giant clam


Definition of giant clam

: a very large clam (Tridacna gigas) found on the coral reefs of the Indian and Pacific oceans that sometimes weighs more than 500 pounds (227 kilograms)

Examples of giant clam in a Sentence

Recent Examples on the Web

Soon, the team had nine burrowing giant clams resting comfortably on flat, color-changing pH-sensitive foil in lab tanks. Veronique Greenwood, New York Times, "This Burrowing Clam Is Not Boring. It Uses Acid to Make Its Home.," 14 June 2018 And, yes, there are giant clams — which are not accompanied, visitors who attended college dance parties in the 1980s might be disappointed to learn, by rock lobsters. Steve Johnson,, "'Underwater Beauty' at the Shedd is like a fantasy snorkeling trip on dry land — and no upcharge," 21 May 2018 The giant clams, which can reach more than 10 inches, are harvested by hand from a single 10 mile stretch of beach on the west side of Cook Inlet at the southwest corner of Polly Creek. Laine Welch, Anchorage Daily News, "Here’s how Alaska fishery managers expect this salmon season to play out," 15 May 2018 In China, the shells of giant clams are carved into art and jewelry, and their meat is snapped up as a gourmet treat and aphrodisiac, Christina Larson reported for Science in January. John Mcmanus, National Geographic, "Giant Clam Poaching Wipes Out Reefs in South China Sea," 12 July 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'giant clam.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of giant clam

circa 1889, in the meaning defined above

Keep scrolling for more

Learn More about giant clam

Share giant clam

Statistics for giant clam

Look-up Popularity

Time Traveler for giant clam

The first known use of giant clam was circa 1889

See more words from the same year

More from Merriam-Webster on giant clam

Rhyming Dictionary: Words that rhyme with giant clam Encyclopedia article about giant clam

Comments on giant clam

What made you want to look up giant clam? Please tell us where you read or heard it (including the quote, if possible).


to deny responsibility for

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
True or False

Test your knowledge - and maybe learn something along the way.


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!