circuit

The path or course of flow of cases or electric or other currents. [L. circuitus, a going round, fr. circum, around, + eo, pp. itus, to go]
- anesthetic c. equipment used during inhalation anesthesia to regulate concentrations of inhaled gases; includes a reservoir bag and usually directional valves, breathing tubes, and a carbon dioxide absorber.
- Papez c. a long circuitous conduction chain in the mammalian forebrain, leading from the hippocampus by way of the fornix to the mammillary body and thence returning to the hippocampus by way of, sequentially, the anterior thalamic nuclei, cingulate gyrus, and parahippocampal gyrus.
- reverberating c. a theory of periodic conduction through the cerebral cortex of trains of impulses traveling in circuits of neurons.
- signal-processing circuits the electronic hardware of hearing aid s that allows alteration in the amplification of various bands of frequencies of the acoustic signal.

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cir·cuit 'sər-kət n the complete path of an electric current including usu. the source of electric energy

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cir·cuit (surґkət) [L. circuitus] the round or course traversed by an electrical current. The circuit is said to be closed when it is continuous, so that the current may pass through it; it is open, broken, or interrupted when it is not continuous and the current cannot pass through it.

Medical dictionary. 2011.

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  • circuit — [ sirkɥi ] n. m. • 1257; circuite n. f. 1220; lat. circuitus, de circuire, circumire « faire le tour » 1 ♦ Vieilli Distance à parcourir pour faire le tour d un lieu. ⇒ contour, périmètre, pourtour, 3. tour. Le parc a quatre kilomètres de circuit …   Encyclopédie Universelle

  • Circuit — may mean: In science and technology Circuit theory, the theory of accomplishing work by routing electrons, gas, fluids, or other matter through a loop Pneumatic circuit Hydraulic circuit Boolean circuit circuit (computer theory) Integer circuit a …   Wikipedia

  • Circuit — Cir cuit, n. [F. circuit, fr. L. circuitus, fr. circuire or circumire to go around; circum around + ire to go.] 1. The act of moving or revolving around, or as in a circle or orbit; a revolution; as, the periodical circuit of the earth round the… …   The Collaborative International Dictionary of English

  • Circuit TI — Circuit international d Okayama 34°54′54″N 134°13′16″E / 34.915, 134.22111 …   Wikipédia en Français

  • circuit — cir·cuit n 1 a: a route formerly taken by traveling judges b: a district established within a state or the federal judicial system see also the judicial system in the back matter 2 cap: the court of appeals for a circuit in the federal judicial… …   Law dictionary

  • circuit — CIRCUÍT, circuite, s.n. 1. Ansamblu de fire şi dispozitive bune conducătoare de electricitate care, împreună cu sursa curentului, formează un traseu închis pentru trecerea unui curent. ♢ (electron.; în sintagma) Circuit imprimat = circuit… …   Dicționar Român

  • circuit — CIRCUIT. sub. mas. (Ce mot est de trois syllabes.) Enceinte, tour. Le circuit de la Ville. Faire le circuit des murailles. Le circuit d une Province. Un grand circuit. Un long circuit. Cette Ville a une grande lieue de circuit. [b]f♛/b] On dit… …   Dictionnaire de l'Académie Française 1798

  • circuit — CIRCUIT. s. m. Enceinte, tour. Le circuit de la ville. faire le circuit des murailles. le circuit d une Province. un grand circuit. un long circuit. cette ville a une grande lieüe de circuit. On dit fig. Circuit de paroles, & cela se prend pour… …   Dictionnaire de l'Académie française

  • circuit — UK US /ˈsɜːkɪt/ noun [C] ► IT a path for an electric current to flow through: »The most advanced chip technology, which uses circuits 65 nanometers apart, loses almost half of its power to leakage. »an electrical/electronic circuit → See also… …   Financial and business terms

  • circuit — [sʉr′kit] n. [ME < OFr < L circuitus, a going around, circuit < circumire < circum (see CIRCUM ) + ire, to go: see YEAR] 1. the line or the length of the line forming the boundaries of an area 2. the area bounded 3. the act of going… …   English World dictionary

  • circuit — (n.) late 14c., from O.Fr. circuit (14c.), from L. circuitus a going around, from stem of circuire, circumire go around, from circum round (see CIRCUM (Cf. circum )) + ire to go (see ION (Cf. ion)). Electrical sense is from 1 …   Etymology dictionary

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