detector
It senses presence
A detector is a device or instrument that senses the presence of something and signals when it finds it: smoke detector, metal detector, lie detector.
The word extends to any mechanism—physical or abstract—that identifies or reveals: a good detector of sarcasm.
In physics, detectors register particles or radiation.
Urgent warning signal
- surveillanceSystematic observation of subjects
- monitoringOngoing observation of something
- intrusionUnauthorized entry into space
- scannerDevice that reads data
screening · checkpoint · baggage · walkthrough · handheld · airport · contraband · weapon
Input-detecting device
- gaugeStandard of measurement
- meterDevice that measures usage
- spectrometerMeasures electromagnetic radiation properties
- radiationEnergy propagation through space
dosimeter · breathalyzer · voltmeter · ammeter · multimeter · thermistor · photodiode · transducer
Minute piece of matter
- photonElectromagnetic radiation unit
- neutrinoUncharged, near-massless particle
- CERNEuropean nuclear research organization
- colliderDual-beam particle accelerator
calorimeter · spectrograph · telescope · infrared · ultraviolet · X-ray · Higgs · muon
Graphed oscillation pattern
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
- noiseUnwanted auditory disturbance
- interferenceUnwelcome involvement in affairs
filtering · threshold · sensitivity · gain · attenuation · bandwidth · modulation · output
alarm
Urgent warning signal
- surveillanceSystematic observation of subjects
- monitoringOngoing observation of something
- intrusionUnauthorized entry into space
scanner · screening · checkpoint · baggage · walkthrough · handheld · airport · contraband · weapon · explosives
sensor
Input-detecting device
- gaugeStandard of measurement
- meterDevice that measures usage
- spectrometerMeasures electromagnetic radiation properties
radiation · dosimeter · breathalyzer · voltmeter · ammeter · multimeter · thermistor · photodiode · transducer · probe
particle
Minute piece of matter
- photonElectromagnetic radiation unit
- neutrinoUncharged, near-massless particle
- CERNEuropean nuclear research organization
collider · calorimeter · spectrograph · telescope · infrared · ultraviolet · X-ray · Higgs · muon · electron
waveform
Graphed oscillation pattern
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
- noiseUnwanted auditory disturbance
interference · filtering · threshold · sensitivity · gain · attenuation · bandwidth · modulation · output · input
- medical imagingCT scan, MRI, X-ray, PET scan, MRI scan
- testing instrumentsspectrophotometer, multimeter, oscilloscope, voltmeter, ohmmeter
- chromatographychromatography, chromatogram, TLC, SEC, columns
- crystallographycrystal structure, crystal systems, crystal growth, dislocations, crystallization
- electron microscopyelectron microscope, SEM, scanning electron microscope, STEM, electron gun
- flow cytometryFACS, gating, forward scatter, fluorescence, dot plot
detectorconcealer
Cosmetic for hiding flaws
cloaking device · jammer · hider · masker · camouflage
detectoremitter
Thing that gives off
transmitter · generator · producer · broadcaster · projector
- smoke detectorsDevices sensing airborne combustion particles
- lie detectorDevice measuring physiological deception signs
- metal detectorDevice sensing buried conductors
- private detectiveLicensed investigator for hire
- detective workSystematic inquiry into mysteries
- detective storyNarrative featuring investigation
detective, detect, detection, detected, detecting, undetected, detectable, undetectable, detects