from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Anatomy The tissue characteristic of an organ, as distinguished from associated connective or supporting tissues.
  • noun Botany A simple plant tissue, composed of thin-walled cells and forming the greater part of leaves, roots, the pulp of fruit, and the pith of stems.

from The Century Dictionary.

  • noun In anatomy and zoology: The proper tissue or substance of any part or organ, as distinguished from the connective or other sustentacular tissue which it contains.
  • noun The undifferentiated body-substance or chyme-mass of the unicellular animal, as an infusorian; indistinguishable cell-substance; endoplasm.
  • noun The general substance of the interior of the parenchymatous worms.
  • noun In botany, the fundamental cellular tissue of plants: contradistinguished from prosenchyma, or fibrovascular tissue.
  • noun Also parenchyme.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Biol.) The soft cellular substance of the tissues of plants and animals, like the pulp of leaves, the soft tissue of glands, and the like.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The functional part of an organ, as opposed to supporting tissue.
  • noun botany The ground tissue making up most of the non-woody parts of a plant.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems
  • noun animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels


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

[New Latin, from Greek parenkhuma, visceral flesh, from parenkhein, to pour in beside : para-, beside; see para– + en-, in; see en in Indo-European roots + khein, to pour; see gheu- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek παρέγχυμα ("anything poured in beside"), from παρά 'alongside' + -enchyma.


  • It is the cell-sap of the ordinary cell tissue or parenchyma, which is colored by the anthocyan, and for this reason all organs possessing this tissue, may exhibit the color in question.

    Species and Varieties, Their Origin by Mutation

  • Henceforward, if I ever make botanical quotations, I shall always call parenchyma, By-tis; prosenchyma, To-tis; and diachyma, Through-tis, short for By-tissue, To-tissue, and Through-tissue -- then the student will see what all this modern wisdom comes to!

    Proserpina, Volume 2 Studies Of Wayside Flowers

  • Fetal tracheal occlusion for severe congenital diaphragmatic hernia in humans: A morphometric study of lung parenchyma and muscularization of pulmonary arterioles.

    CHOP congenital diaphragmatic hernia publications

  • Computer-assisted sterology: point fraction of lung parenchyma and alveolar surface density in fetal and newborn sheep.

    CHOP congenital diaphragmatic hernia publications

  • Vascular transport can be described as a diffusion process through plant root aerochyma (parenchyma containing large air spaces typical of emergent and marginal wetland species), which is a continuous network of gas-filled channels.

    Effects of changes in climate and UV radiation levels on function of arctic ecosystems in the short and long term

  • Heather and I made up a new meaning for parenchyma (some layer or something on your heart, whatever) and the new meaning (and spelling) turned out to be

    super-suzan Diary Entry

  • Deposition of asbestos fibres in the parenchyma of the lung may result in the penetration of the visceral pleura from where the fibre can then be carried to the pleural surface, thus leading to the development of malignant mesothelial plaques.

    Your Right Hand Thief

  • The capsule is intact and slightly wrinkled, and the parenchyma is pale purple and trabecular.

    The Concrete Blonde

  • The capsule is intact and slightly wrinkled, and the parenchyma is pale purple and trabecular.

    The Black Echo

  • In some cases, relief of vasomotor instability was more easily obtained with vitamin E than with the use of estrogen; however, the chief advantage of vitamin E over estrogens is its freedom of stimulative effect on the genital system or on the parenchyma of the breast.

    The New Super-Nutrition


Log in or sign up to get involved in the conversation. It's quick and easy.