Full Definition of SEMICONDUCTOR. : any of a class of solids (as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures.ull Definition of SEMICONDUCTOR. : any of a class of solids (as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures.
Do-It-Yourself Christmas Ornaments. These do it yourself Christmas ornaments, made of sticks and yarn, can be a fun project for the whole family. Add a unique touch to your do it yourself Christmas ornaments by using multiple yarn colors. Content Tools.
Young woman decorates the Christmas tree, painting by Marcel Rieder (1862-1942) from 1898. A Christmas tree is a decorated tree, usually an evergreen conifer such as spruce, pine, or fir or an artificial tree of similar appearance, associated with the celebration of Christmas.