Sclerenchyma /(?)/

Scle·ren·chy·ma

Sclerenchyma

n.
  1. Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See Sclerotic. (Bot.)
  2. The hard calcareous deposit in the tissues of Anthozoa, constituting the stony corals. (Zool.)