Definitions

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

  • n. A supportive plant tissue that consists of thick-walled, usually lignified cells.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A mechanical, supportive ground tissue in plants consisting of aggregates of cells having thick, often mineralized walls
  • n. The hard calcareous deposit in the tissues of Anthozoa, constituing the stony corals.

from the GNU version of the Collaborative International Dictionary of English

  • n. Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See sclerotic.
  • n. The hard calcareous deposit in the tissues of Anthozoa, constituting the stony corals.

from The Century Dictionary and Cyclopedia

  • n. The hard sub stance of the calcareous skeleton or corallum of sclerodermic corals, a proper tissue-secretion or calcification of the soft parts of the polyps themselves.
  • n. In botany, the tissue largely composing the hard parts of plants, such as the shell (endocarp) of the hickory-nut, the seed-coat of seeds, the hypoderma of leaves, etc.

Etymologies

Ancient Greek σκληρός ("hard") + -enchyma (Wiktionary)

Examples

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