Science. 1  Chara (alga), a genus of algae in the family Characeae. 2  Chara (moth), a genus of moths in the family Noctuidae. 3  CHARA array, a telescope.  Beta Canum Venaticorum or Chara, a 1  star. Chara or Southern dogs, a constellation including Beta Canum Venaticorum and Cor Caroli.
/mesoÂ·theÂ·liÂ·um/ (-theÂ´le-um) the layer of cells, derived from mesoderm, lining the body cavity of the embryo; in the adult, it forms the simple squamous epithelium that covers all true serous membranes (peritoneum, pericardium, pleura).mesotheÂ´lial.
Serous membranes are made up of epithelium and loose connective tissue and secrete. serous fluid that acts as a lubricant. B. Mucous membranes line the cavities and openings that lead to the outside of the body, including the oral and nasal cavities, and openings of the digestive, reproductive,