clamshell — English Dictionary

clamshell

Noun

  1. The shell of a clam.

  2. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together.

    Examples
    More examples (1)

    You'll find a mix among clamshell laptops for strong laps, lunchboxes, and sewing-machine configurations; the latter two designs typically have detachable keyboards.

  3. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together. A dredging bucket with hinges like the shell of a clam.

    Examples
    More examples (1)

    The wall has been constructed one panel at a time by a machine which uses a clamshell bucket to excavate straight down to a depth of 30 metres. […] Specialised long-reach excavators with a clamshell grab then reach though the openings to lift the spoil to the surface, which is then deposited in articulated dump trucks (ADTs).

  4. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together. In food service, the closing box (usually styrofoam but sometimes cardboard) given to consumers with takeout food.

  5. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together. A hinged case for a video tape, cassette tape, or video game cartridge.

  6. Any object that, in (literal or figurative) resemblance to the shell of a clam, has a hinge on one edge and two surfaces that close together. A person's mouth.

    Usage
    • US usage
    • Dated
    • Derogatory
    • Slang
    Examples

    Shut your clamshell!

    He was quickly silenced, however, by a burly individual, who "reckoned that it mout be jist as well for the stranger to keep his clam-shell shut."

    More examples (1)

    "Shut your clamshell, Toby," grumbled the Baron.

  7. Any object with some other resemblance to either one or both halves of the shell of a clam.

    Usage
    • attributive
    • often
  8. Any object with some other resemblance to either one or both halves of the shell of a clam. An amphitheater, especially an outdoor amphitheater; the semi-circular acoustic backdrop behind and above the performers.

    Usage
    • attributive
    • often
    Synonyms

Verb

  1. To deform a die in a shape resembling the shell of a clam, as a result of uneven extrusion pressure.

    Examples
    More examples (1)

    Although it produces a nonuniform pressure drop across the die and thus causes nonuniform flow through the die lip, the distribution of the melt does not produce die distortion of ^([sic]) clamshelling.

    However, this solution is more susceptible to clamshelling, as the land length is particularly large at the centre.

  2. To dig out by means of a clamshell (dredging bucket).

    Examples
    More examples (1)

    The additional handling that it would get by the canal would be: One dumping from the pockets into the canal barge, one clamshelling out of the canal barge, and one dumping onto the dock.

    First the contractor clamshelled the silty material into two parallel dikes which are 200 feet apart.

    The sludge will be clamshelled and landfilled, or recycled to melting operations.

    More examples (2)

    Sludges produced at C must be periodically clamshelled out & transferred to controlled landfill.

    Denser, more consolidated materials discharged at the disposal site, excavated by mechanical means (ie., clamshelled) descends more rapidly to the bottom and deposits at a density near to the in situ density at the dredging site (SAIC, 1987a/b).

  3. To compress or flatten underwater debris so as to avoid blocking a channel.

    Examples
    More examples (1)

    In the past, when a boat sank and was judged unfit for salvage, the Coast Guard 'clamshelled' it. That is, they broke it up in order to flatten it as much as possible so it wouldn't obstruct river traffic.

  4. To open or close by means of a hinge, similar to the way a clamshell opens and closes.

    Usage
    • Transitive or intransitive
    Examples

    To avoid getting clamshelled, first check the seat pins, then climb in before you pin the canopy.

    Sixty-three of the transports grounded in a ring some 400 kilometers outside Cavite City, and their sides clamshelled and Tahn assault troops stormed out.

    More examples (6)

    Richard replied bluntly as the safety harness automatically clamshelled comfortably around his hips and shoulders.

    He popped the release on the VISOR's helmet and it clamshelled open.

    He clamshelled his phone.

    This time, as soon as the hatches serving the water-level stern hold had clamshelled wide enough open, the twelve-place aircar assigned to heavy cruisers as a utility vehicle—the Princess Cecile had a jeep that could carry four if they were good friends —roared out.

    If it is folded or clamshelled, this mesh should be removed if feasible to allow for placement of new mesh.

    It lay on the writing desk, a laptop computer clamshelled shut.

Noun

  1. the shell of a clam

    Broader terms
  2. a dredging bucket with hinges like the shell of a clam

    Synonyms
    Broader terms
Word forms
clamshellsclamshellsclamshellingclamshelledclamshelled

Code Formatters

Format and beautify Java, Python, JavaScript, JSON, HTML and more; adjust indentation, spacing and line breaks.

More tools

Audio Editing & Effects

Trim, join or split recordings, remove silence or noise, and adjust volume, speed, pitch or channels.

More tools

Spreadsheet Tools

Open and edit CSV or Excel sheets, format tabular text, and convert CSV to Excel or SQL.

More tools

Markdown Tools

Write and preview Markdown, render Mermaid diagrams, and convert Markdown, HTML and tables between formats.

More tools

Text Tools

Compare passages, count words and keywords, sort or replace lines, and view DOCX text.

More tools

Dictionaries

Look up Chinese meanings, synonyms and antonyms, or find IPA pronunciations in multiple languages.

Audio Conversion & Playback

Convert between MP3, WAV, FLAC and more, play audio or raw PCM, and inspect or edit audio metadata.

JSON & Data Tools

Inspect, compare and validate JSON; test JSONPath expressions, or convert data to CSV, YAML and XML.

More tools

Speech Tools

Transcribe audio to text, generate speech from text, or record your voice in the browser.

Video Tools

Convert and compress video, trim or join clips, resize frames, and extract audio.

More tools

Video Playback & Recording

Play local or streaming video, record your screen or camera, and use your camera as an online mirror.

PDF Tools

Compress or merge PDFs, split and rearrange pages, convert pages to images, and view or compare documents.

More tools

Image Tools

Convert image formats, resize or crop photos, compress files, compare pictures, and extract text with OCR.

More tools

Image Creation

Capture and beautify screenshots, turn text into images or GIFs, draw on a whiteboard, and create word clouds or favicons.

More tools

Subtitle Tools

Edit SRT or VTT captions with a video preview, shift timing, convert formats, and manage subtitle tracks.

More tools

Archive Tools

Open ZIP, 7Z, RAR or TAR files, extract selected contents, and create new archives with optional ZIP/7Z passwords.

Encoders | Decoders

Encode and decode Base64 or Base32, escape URLs, HTML and Unicode text, and inspect JWT contents.

More tools

Number Tools

Convert number bases and values between binary, decimal and hex; turn numbers into words or text into binary.

Calculators

Work out percentages and fractions, summarize statistics, and calculate grades, discounts or aspect ratios.

More tools

Time Tools

Show an online clock, run a countdown or stopwatch, and calculate dates, ages or time-zone differences.

More tools

Network Tools

Check your IP and IPv6 connection, inspect HTTP requests or HAR files, and calculate CIDR address ranges.

Unit Conversions

Convert length, weight, temperature, data storage and other units.

Color Tools

Convert HEX, RGB and HSL values, extract colors from an image, check contrast, or test your display with solid colors.

QR Codes & Barcodes

Generate and scan QR codes or barcodes, including QR codes for links and Wi-Fi networks.

Developer & Security Tools

Generate hashes, UUIDs and passwords, test regular expressions, create URL slugs and check file permissions.

More tools

Utility Tools

Check screen resolution and refresh rate, measure with a screen ruler, test keys, or read from a teleprompter.

More tools

Games

2048, Minesweeper, Sudoku, Gomoku, Tank Battle

More tools