direct current

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current

 [kur´ent]
1. something that flows.
2. specifically, electricity transmitted through a circuit.
alternating current a current that periodically flows in opposite directions; its amplitude fluctuates as a sine wave.
convection current a current caused by movement by convection of warmer fluid into an area of cooler fluid.
direct current a current that flows in one direction only; when modeled as a wave, its amplitude is constant. When used medically it is called galvanic current. This current has distinct and important polarity and marked secondary chemical effects.
galvanic current a steady direct current.
current of injury an electric current that flows between injured myocardium and normal myocardium, because such cells have a reduced membrane potential; it may be either diastolic or systolic.
current of injury, diastolic the current that flows from injured to noninjured tissue during electrical diastole.
current of injury, systolic the current that flows from healthy tissue to injured tissue during electrical systole.
inwardly rectifying current current that rectifies so that it passes more easily towards the interior of a cell.
leakage current the electrical current that exists in the parts or metal case of electrical equipment.
outwardly rectifying current current that rectifies so that it passes more easily towards the exterior of a cell.
potassium rectifying c's transmembrane currents that rectify inwardly or outwardly to make adjustments in cellular functions; they are mainly responsible for the repolarization phase of the action potential. There are at least six mechanisms by which potassium ions move across cardiac cell membranes in the role of rectifier.

di·rect cur·rent (DC),

a current that flows only in one direction, for example, that is derived from a battery; sometimes referred to as galvanic current.
See also: galvanism.

direct current

A continuous electromagnetic current that flows in only one direction.

di·rect cur·rent

(DC) (di-rekt kŭrĕnt)
An electrical current that flows only in one direction; e.g., that derived from a battery; sometimes referred to as galvanic current.

di·rect cur·rent

(DC) (di-rekt kŭrĕnt)
An electrical current that flows only in one direction; also referred to as galvanic current.
References in periodicals archive ?
D-C's coach went on to credit the contributions of senior guard Damarion Butler (4.1 ppg, 2.9 apg), along with reserves like Justin Prusko (6-6, 230 pounds), junior guard Douglas Miller, Jr., freshman Kennon Cook, junior guard Trayvon Hatcher, junior forward Ryan Hodor, senior forward Logan Frey and junior guard Kyle Huber.
Over 60 analog and digital temperature meters include industrial-type stainless-steel-stem and upright-stem thermometers; panel-mount meters and transmitters with type J, K, T and E thermocouple probes; strip-chart and circular temperature recorders; infrared meters for noncontact measurements (portable and remote models with 4-20 mA output); and multichannel, 4-20 mA or 0-5 v d-c, temperature monitors with alarm systems
D-C led 35-31 after three quarters and extended the lead to 48-37 on Stec's putback with 3:15 to play.
Units may be operated manually, or may be equipped to follow an analog milli-amp or d-c voltage signal from a temperature controller or PLC.
Green concedes that the recent extension of brushless d-c motors into higher horsepower ranges also eliminates brush and commutator deterioration in conventional d-c motors, but adds that brushless d-c units still have open frames that may draw in dust.
D-C's biggest lead was 48-24 after a putback by Kylie Ryza with 1:22 remaining in the contest.
Manufactures standard and custom controls and indicators in a wide range of packages (1/2, 1/4, 1/8, 1/16 DIN, open-board, sealed, potted, NEMA-4); input (thermocouple, RTD, process) and output (solid-state, switched d-c, mechanical relay, process) configurations; serial communication options (RS-422/423, EIA-485); agency approvals (UL, FM, FDA, CSA, AGA, TUV, VDE, MIL-STD) and calibration curves (DIN, JIS).
"As good as D-C's offense and their quarterback (Raby) are, it was important for us to respond and score on our first drive of the game," said Seaburg.
High-level outputs (4-20 mA, 0-5 v d-c, 0-10 v d-c) are available on all melt pressure transducers.
It is always nice to beat D-C. We need to be ready to go tomorrow.
How popular will brushless d-c drives, currently supplied only by Wertec Corp., Charlotte, N.C., become in this decade is an open question.
"We knew we were the underdogs, that was our edge," said Bergeron, who helped D-C to its first regional title since 2009 with 12 points and 8 rebounds.