﻿

# conductivity

1. The power of transmission or conveyance of certain forms of energy, as heat, sound, and electricity, without perceptible motion in the conducting body. 2. The property, inherent in living protoplasm, of transmitting a state of excitation; e.g., in muscle or nerve.
- hydraulic c. ease of pressure filtration of a liquid through a membrane; specifically, Kf = η(Q/A) (δx/δP), where Kf = hydraulic c., η = viscosity of the liquid being filtered, Q/A = volume of liquid filtered per unit time and unit area, and δx/δP = reciprocal of the pressure gradient through the membrane; solute concentrations should be identical on both sides of the membrane. Also applied more loosely to measurements on a total membrane of unknown area and thickness with unmeasured fluid viscosity (K = Q/δP).

* * *

con·duc·tiv·i·ty .kän-.dək-'tiv-ət-ē, kən- n, pl -ties the quality or power of conducting or transmitting: as
a) the reciprocal of electrical resistivity
b) the quality of living matter responsible for the transmission of and progressive reaction to stimuli

* * *

con·duc·tiv·i·ty (kon″dək-tivґĭ-te) the capacity of a body to transmit a flow of electricity or heat; it is the conductance per unit area of the body. When expressed in figures, electrical conductivity is the reciprocal of resistivity.

Medical dictionary. 2011.

Synonyms:

### Look at other dictionaries:

• Conductivity — may refer to: Electrical conductivity, a measure of a material s ability to conduct an electric current Conductivity (electrolytic), also the specific conductance, is a measurement of the electrical conductance per unit distance in an… …   Wikipedia

• Conductivity — Con duc*tiv i*ty (k[o^]n d[u^]k*t[i^]v [i^]*t[y^]), n. The quality or power of conducting, or of receiving and transmitting, as heat, electricity, etc.; as, the conductivity of a nerve. [1913 Webster] {Thermal conductivity} (Physics), the… …   The Collaborative International Dictionary of English

• conductivity — ► NOUN ▪ the degree to which a specified material conducts electricity or heat …   English terms dictionary

• conductivity — [kän΄duk tiv′ə tē] n. 1. the property of conducting or transmitting heat, electricity, etc. 2. Elec. conductance per unit of area or volume, measured in siemens per meter: the reciprocal of resistivity …   English World dictionary

• conductivity —    The ability of a material to transfer energy from one place to another. Thermal conductivity describes a substance’s ability to transmit heat. Electrical conductivity describes a substance’s ability to transmit electrical current. Conductivity …   Forensic science glossary

• conductivity — savitasis laidis statusas T sritis automatika atitikmenys: angl. conductivity; electrical conductivity; specific conductivity vok. spezifischer Leitwert, m rus. удельная проводимость, f; удельная электропроводность, f pranc. conductibilité… …   Automatikos terminų žodynas

• conductivity — electrical conductivity thermal conductivity …   Mechanics glossary

• conductivity — The ability of something to conduct electricity. Opposite of resistivity. Also see electrical conductivity heat conductivity …   Dictionary of automotive terms

• conductivity — the ability of water to pass an electric current as determined by the negatively charged anions (chloride, nitrate, sulphate, phosphate, etc) and the positively charged cations (sodium, magnesium, calcium, aluminium, iron, etc). Temperature also… …   Dictionary of ichthyology

• conductivity — laidumas statusas T sritis automatika atitikmenys: angl. conduction; conductivity vok. Leitfähigkeit, f; Leitung, f; Leitvermögen, n rus. проводимость, f pranc. conductibilité, f; conduction, f …   Automatikos terminų žodynas