DictionaryAI

cell

SEL/sɛl/

Pluralcells

23 meanings of cell

Practice

  1. 1
    unit of lifenouncountable
    The basic unit of a living organism, made of protoplasm enclosed by a membrane and typically able to synthesize proteins and copy itself.

    Under the microscope, each cell appeared as a distinct, membrane-bound unit.

    The body repairs damaged tissue by producing new cells.

    Note

    Biology's building block sits at the base of a hierarchy. As Terence Allen and Graham Cowling put it in The Cell: A Very Short Introduction (2011), groups of cells form tissues, and tissues come together to form organs. Keep this sense apart from the botanical chamber, which is a cavity within a tissue rather than a living unit of one.

    Checked 5 Nov 2026 · 3 facts

    • Terence Allen and Graham Cowling wrote The Cell: A Very Short Introduction and describe the hierarchy from cells to tissues to organs. en.wiktionary.org
    • The book was first published in English in 2011. downloads.hindawi.org
    • The botanical chamber sense denotes a cavity, distinct from a biological cell as a living unit. en.wikipedia.org
  2. 2
    mobile phonenouncolloquialAustraliaNew ZealandPhilippinesUScountable
    A cellular telephone, especially a small handheld one carried for personal use.

    He checked his cell for messages between meetings.

    Both of their cells rang at the same time.

    UsagePeople say on my cell or my cell number; in writing, cell phone is the safer choice.

    Similarphone, mobile, cellphone

  3. 3
    prison roomnouncountable
    A room in a prison or jail used to confine one or more inmates.

    She spent three years in a cramped prison cell.

    The cells along the corridor were all occupied.

  4. 4
    batterynouncountable
    A device that produces an electric current from a chemical reaction, used singly or combined with others as the basic unit of a battery.

    Each cell in the pack delivers about 1.5 volts.

    Engineers tested how long the cells held their charge.

    UsageThe technical word for one unit; in everyday talk most people say battery, as in two AAA batteries.

    Note

    Engineers keep a distinction here that everyday speech blurs. A cell is the single unit; a battery was once only a set of cells joined together, though the word now also covers a single cell.

  5. 5
    spreadsheet boxnouncountable
    The unit in a spreadsheet or statistical table where a row and a column intersect.

    Enter the formula in the top-left cell of the table.

    The spreadsheet flagged several cells containing errors.

    UsageYou enter something in a cell, and select or fill cells.

  6. 6
    small sectionnouncountable
    A distinct section or compartment forming part of a larger structure.

    Each cell of the egg carton holds a single egg.

    The bridge deck is built from repeating box cells.

    Similarcompartment, section

  7. 7
    secret groupnouncountable
    A small group of people forming part of a larger organization, frequently a clandestine or outlawed one.

    Each resistance cell operated independently to avoid detection.

    Investigators traced funding to several sleeper cells abroad.

    UsageCommon in terrorist cell and sleeper cell, a hidden group waiting to act.

    Similarunit, group, cadre, ring

  8. 8
    signal areanouncountable
    A region of radio reception served by one transmitter and forming part of a larger radio network.

    As the train moved, the signal passed from one cell to the next.

    Densely populated areas need smaller cells to handle the traffic.

    Note

    Radio networks divide their territory into cells, each a patch of reception within the whole. Talk about coverage tends to follow the same picture, with a signal handed on as a user moves from one cell to the next.

  9. 9
    nouncountable
    A device that converts sunlight or any other light into electricity, usually one of many wired together in a solar panel.

    A single cracked cell can drag down the output of an entire solar panel.

    Engineers are testing a thin, flexible cell that turns ordinary indoor lighting into enough power for small sensors.

    Similarphotocell

    Note

    A cell that makes electricity rather than one that keeps it: the battery cell stores power for later, while this kind produces it only while light falls on it. Because the bare word still suggests a battery to most readers, people usually say solar cell, or let a nearby mention of a panel make the meaning clear. One cell gives little power; the panel is what joins many into something useful.

Practice

Can you tell the meanings of cell apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origins

Meanings 1, 3–15

The root is Proto-Indo-European *ḱel- ("to cover"), which lies behind Latin cella ("chamber, small room, compartment"). That word became Old English cell and Middle English celle, with later support from Old French forms like cel and cele. Cella and hall are doublets.

Meaning 2

Cellular phone was clipped to cell phone, and that was shortened again to cell; cellular phone itself is cellular plus phone.