Sclerenchyma
Sclerenchyma , noun
[New Latin, from Greek sklhro`s hard + -enchyma as in parenchyma.]
1.
(Botany) Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See Sclerotic.
By recent German writers and their English translators, this term is used for liber cells.
2.
(Zoology) The hard calcareous deposit in the tissues of Anthozoa, constituting the stony corals.