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Definition of clamshell

clamshell

/ˈklæmˌʃɛl/
clam · shell

Plural:clamshells
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clamshell Lexical Profile

clamshell Game Scores & Validity

• noun

1

A type of container or packaging consisting of two hinged halves that snap together, often made of clear plastic.

Example

"The fresh strawberries were carefully packed in a protective plastic clamshell for shipping."


2

The hard, hinged, bipartite protective outer covering of a clam.

Example

"Children spent the afternoon collecting pristine white clamshells scattered along the shoreline."


3

A dredging bucket or mechanical grappling device with two hinged jaws, used for excavation or handling loose bulk materials.

Example

"The crane lowered the heavy steel clamshell into the river to dredge up accumulated sediment."

Synonyms
View all synonyms for clamshell

Word Origin & Etymology

Originated in the mid-16th century in English as a compound of 'clam' and 'shell', initially referring to the biological casing of the mollusk. It was later extended in the 20th century to describe hinged mechanical tools and packaging designs.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Clamshell. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/clamshell
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