| contact | close interaction, they kept in daily contact, they claimed that they had been in contact with extraterrestrial beings |
| eye contact | contact that occurs when two people look directly at each other, a teacher should make eye contact with the students |
contact
physical contact | the act of touching physically, her fingers came in contact with the light switch |
| closed primary | a primary in which only registered members of a particular political party can vote, closed primaries strengthen party unity |
lap circle
circuit | movement once around a course, he drove an extra lap just for insurance |
tour
circuit | a journey or route all the way around a particular place or area, they took an extended tour of Europe, we took a quick circuit of the park, a ten-day coach circuit of the island |
| contact sport | a sport that necessarily involves body contact between opposing players |
| closed-heart surgery | heart surgery in which a small incision is made (the chest cavity is not opened) |
AND circuit
AND gate | a circuit in a computer that fires only when all of its inputs fire |
| bridge bridge circuit | a circuit consisting of two branches ( arms arranged in a diamond configuration) across which a meter is connected |
circuit
electrical circuit
electric circuit | an electrical device that provides a path for electrical current to flow |
circuit board
circuit card
board card plug-in
add-in | a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities |
circuit breaker
breaker | a device that trips like a switch and opens the circuit when overloaded |
closed circuit
loop | a complete electrical circuit around which current flows or a signal circulates |
closed loop
closed-loop system | a control system with a feedback loop that is active |
| computer circuit | a circuit that is part of a computer |
contact
tangency | (electronics) a junction where things (as two electrical conductors) touch or are in physical contact, they forget to solder the contacts |
| contact contact lens | a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication |
| contact print | a print made by exposing a photosensitive surface to direct contact with a photographic negative |
control circuit
negative feedback circuit | a feedback circuit that subtracts from the input |
| electrical contact | contact that allows current to pass from one conductor to another |
feedback circuit
feedback loop | a circuit that feeds back some of the output to the input of a system |
integrated circuit
microcircuit | a microelectronic computer circuit incorporated into a chip or semiconductor, a whole system rather than a single component |
light circuit
lighting circuit | wiring that provides power to electric lights |
NAND circuit
NAND gate | a logic gate that produces an output that is the inverse of the output of an AND gate |
| open circuit | an incomplete electrical circuit in which no current flows |
OR circuit
OR gate | a gate circuit in a computer that fires when any of its inputs fire |
parallel circuit
shunt circuit | a closed circuit in which the current divides into two or more paths before recombining to complete the circuit |
| printed circuit | computer circuit consisting of an electronic sub-assembly, copper conductors are laminated on an insulating board or card and circuit components are inserted into holes and dip soldered |
| pulse timing circuit | a circuit that times pulses |
racing circuit
circuit | a racetrack for automobile races |
| resonator resonant circuit | an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude |
| series circuit | a circuit having its parts connected serially |
short circuit
short | accidental contact between two points in an electric circuit that have a potential difference |
squelch circuit
squelch
squelcher | an electric circuit that cuts off a receiver when the signal becomes weaker than the noise |
| tank circuit | an oscillatory circuit |
telephone line
phone line
telephone circuit
subscriber line
line | a telephone connection |
wiper wiper arm
contact arm | contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet |
X-OR circuit
XOR circuit
XOR gate | gate for exclusive OR, a circuit in a computer that fires only if only one of its inputs fire |
mystery
enigma
secret
closed book | something that baffles understanding and cannot be explained, how it got out is a mystery, it remains one of nature's secrets |
closed interval
bounded interval | an interval that includes its endpoints |
liaison
link
contact
inter-group communication | a channel for communication between groups, he provided a liaison with the guerrillas |
| closed couplet | a rhymed couplet that forms a complete syntactic unit |
| eye contact | a meeting of the eyes between two people that expresses meaningful nonverbal communication, it was a mere glance, but the eye contact was enough to tell her that he was desperate to leave |
executive session
closed session | a session (usually of a legislative body) that is closed to the public |
| contact touch | a communicative interaction, the pilot made contact with the base, he got in touch with his colleagues |
contact
impinging
striking | the physical coming together of two or more things, contact with the pier scraped paint from the hull |
closed-end fund
closed-end investment company | a regulated investment company that issues a fixed number of shares which are listed on a stock market |
| closed shop | a company that hires only union members |
| circuit court of appeals | one of the twelve federal United States courts of appeals that cover a group of states known as a `circuit' |