sclerenchyma

A supportive plant tissue that consists of thick-walled, usually lignified cells. Sclerenchyma cells are either fibers or sclereids.

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.

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.

Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See sclerotic.

The hard calcareous deposit in the tissues of Anthozoa, constituting the stony corals.

A mechanical, supportive ground tissue in plants consisting of aggregates of cells having thick, often mineralized walls

The hard calcareous deposit in the tissues of Anthozoa, constituing the stony corals.