American Heritage® Dictionary of the English Language, Fourth Edition
- n. A plant cell that differs noticeably in form from neighboring cells.
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.
- n. botany An isolated specialised cell found in the midst of an otherwise homogeneous group of cells in plant tissue.
GNU Webster's 1913
- n. (Bot.) An individual cell, differing greatly from its neighbours in regard to size, structure, or contents.
- 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.”
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