from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A plant cell that differs noticeably in form from neighboring cells.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An isolated specialised cell found in the midst of an otherwise homogeneous group of cells in plant tissue.

from the GNU version of the Collaborative International Dictionary of English

  • n. An individual cell, differing greatly from its neighbours in regard to size, structure, or contents.

from The Century Dictionary and Cyclopedia

  • n. A term proposed by Sachs for certain individual cells or tissue-elements which differ greatly, as regards their contents, from the surrounding tissues. Such are the resin-cells, tannin-cells, crystal-cells, etc., found in various plants.
  • n. In biology, one of the hypothetical, ultimate elements of living protoplasm, similar to the gemmules of Darwin, the physiological units of Herbert Spencer, the biophores of Weismann, etc.


from Wiktionary, Creative Commons Attribution/Share-Alike License

idio- + -blast


  • In all organs, CPT accumulation was detected in epidermal idioblasts, in some glandular trichomes, and in groups of idioblast cells localized in parenchyma tissues.

    BioMed Central - Latest articles


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  • A plant cell that differs greatly from the surrounding cells or tissue.

    November 14, 2007