1. someone known for high skill in some intellectual or artistic technique

2. a device or control that is very useful for a particular job

3. optical properties

4. the discipline dealing with the art or science of applying scientific knowledge to practical problems

5. a workplace for the conduct of scientific research

7. the act of arranging a piece of music for an orchestra and assigning parts to the different musical instruments

10. a person who uses goods or services

6. the act of implementing the control of equipment with advanced technology; usually involving electronic hardware

8. an electrical device that provides a path for electrical current to flow

9. a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors

11. an electronic receiver that detects and demodulates and amplifies transmitted signals

12. the procedure of calculating; determining something by mathematical or logical methods