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.


idio- + -blast (Wiktionary)


  • 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