CATECHISM n.
A book containing a summary of principles, especially of religious doctrine, reduced to the form of questions and answers. The Jews, even till this day, have their catechisms. Hooker. The Larger Catechism, The Shorter Catechism. See Westminster Assembly, under Assembly.
CELLULAR a.
Consisting of, or containing, cells; of or pertaining to a cell or cells. Cellular plants, Cellular cryptogams (Bot.), those flowerless plants which have no ducts or fiber in their tissue, as mosses, fungi, lichens, and algæ. -- Cellular theory, or Cell theory (Biol.), a theory, according to which the essential elemen…