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.
A visitor looks at Christmas ornaments for sale at the annual Christmas market in Marienplatz Square in Munich, Germany. Sean Gallup/Getty Images German families prepare for Christmas throughout cold December.