Week #2 Roots

3. an instrument for measuring and indicating temperature, typically one consisting of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol that expands and contracts in the tube with heating and cooling.
8. an X-ray photograph of blood or lymph vessels, made by angiography.
9. record made by a seismograph or
12. something written in secret characters;
16. one whose profession is to measure the range and power of vision
17. instrument for measuring the difference of potentials in volts

1. instrument for visually recording an electrical wave
2. automatic instrument for regulating temperature
3. the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, the relationships between all forms of energy.
4. optical instrument which by means of a lens or lenses magnifies and renders visible minute objects or details of visible bodies
5. an instrument for measuring the density of liquids
6. a fingerprint
7. optical instrument creating and exhibiting, by reflection, a variety of beautiful colors and symmetrical forms
10. instrument for recording something written
11. measurement of the range of vision; measurement of the visual powers in general
13. relating to or connected with the science of optics; pertaining to vision,
14. character or symbol which suggests an object without expressing its name
15. instrument for measuring the strength of electric currents