10. 
    Impedance
    A measure of the response of an electric circuit to an electric current. The actual value is frequency dependent. The current is opposed by the capacitance, inductance and resistance of the circuit.
    Found op http://www.mpoweruk.com/glossary.htm
    
    
11. 
    Impedance
    The total opposition to electrical flow (resistive plus reactive).
    Found op http://www.flowmeterdirectory.com/flowmeter_technical_glossary/flowmeter_te
    
    
12. 
    Impedance
    The opposition to the flow of alternating or varying current. Measured in Ohms.
    Found op http://www.encyclo.co.uk/local/20957
    
    
13. 
    Impedance
    Im·ped'ance noun [ Impede + -ance .] (Electricity) The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromot...
    Found op http://www.encyclo.co.uk/webster/I/17
    
    
14. 
    impedance
    1. Total opposition to flow. When flow is steady, impedance is simply the resistance, e.g., the driving pressure per unit flow; when flow is changing, impedance also includes the factors that oppose changes in flow. Thus, deviations of impedance, from simple ohmic resistance because of the effects o...
    Found op http://www.mondofacto.com/facts/dictionary?impedance
    
    
15. 
    impedance
    (im-pēd´әns) obstruction or opposition to passage or flow, as of an electric current or other form of energy. the resistance in alternating current circuits, represented by the letter Z in mathematical formulas. Medical equipment is often rated according to impedance to allow for optimum...
    Found op http://www.encyclo.co.uk/local/21001
    
    
16. 
    Impedance
    • (n.) The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an induct...
    Found op http://thinkexist.com/dictionary/meaning/impedance/
    
    
17. 
    impedance
    impedance 1. Something that delays or prevents progress, or the preventing of progress. 2. Electricity opposition to flow of alternating current; the opposition in an electrical circuit to the flow of alternating current, consisting of resistance and reactance. 3. The ratio of the pressure to the v...
    Found op http://www.wordinfo.info/words/index/info/view_unit/2801/3
    
    
18. 
    Impedance
    Opposition of a circuit to an alternating current, equal to the complex ratio of the voltage to the current in complex notation. The equivalent of resistance in a DC circuit.
    Found op http://www-bdnew.fnal.gov/operations/accgloss/gloss.html
    
    
19. 
    Impedance
    1) The total opposing force to the flow of current in an ac circuit. 2) The total resistance to flow of an alternating current generally expressed in ohms. It is a combination of resistance and reactance.
    Found op http://www.youngco.com/young2.asp?ID=4&Type=3
    
    
20. 
    Impedance
    A measure of the impediment to the flow of alternating current, measured in ohms at a given frequency. Larger numbers mean higher resistance to current flow.
    Found op http://www.encyclo.co.uk/local/21058
    
    
21. 
    Impedance
    Apparent resistance to flow of electrical current; sometimes used to detect bacterial growth in liquid culture because impedance decreases.
    Found op http://www.dyerlabs.com/glossary/microbiology/2w-x-y-z.html
    
    
22. 
    Impedance
    Opposition of a circuit to an alternating current, equal to the complex ratio of the voltage to the current in complex notation. The equivalent of resistance in a DC circuit.
    Found op http://www-bdnew.fnal.gov/operations/accgloss/gloss.html#A
    
    

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