Wiktionary
n. A camera used to record footage of people without their knowing.
Wikipedia
A hidden camera or spy camera is a still or video camera used to record people without their knowledge. The camera is "hidden" because it is either not visible to the subject being filmed, or is disguised as another object. Hidden cameras can be built into commonly used objects such as television sets, smoke detectors, clock radios, motion detectors, ball caps, plants, and mobile phones. Hidden cameras may be used for household surveillance and may also be used commercially or industrially as security cameras. The proliferation and lower costs of video recording devices has led to an increase in the use of hidden cameras for legitimate surveillance need, as well as for entertainment and other purposes.
The use of hidden cameras raises personal privacy issues and there may be legal aspects to consider, depending on the jurisdiction in which use takes place. A hidden camera can be contrasted with CCTV, which is visible and which sometimes is accompanied with a warning notice of its presence.
Usage examples of "hidden camera".
There was a brief movement in the vegetation beside the gate, and Skip turned to see a cleverly hidden camera swivel toward him.
He slid his left hand into his lap, slipped his right hand into the cuff of his shirt and touched the stud on his wristwatch which advanced the first frame of microfilm into the hidden camera.
Nell shook her head and managed to avoid glancing at her hidden camera.
The one he selected was a full-figure shot taken with a hidden camera.
A hidden camera perched high in the corner of their quarters gave him a view of the four daymen.
The monitor faded to a stark portrait of Richards in his baggy gray workshirt, taken by a hidden camera days before.
It locked on to the holo signal, and crashed right into the hidden camera on the Cardinal's shoulder, knocking it away.
Or had he been freelancing, summoned here only as a punchbag, but stealthy enough to bring a hidden camera with him?
Little could be seen of his features because he was in profile and the picture definition poor - it had been taken by a hidden camera during a bank robbery.
It had glanced at the hidden camera with glowing eyes, a glow that spun into static as it locked on and fired.
In fact they might be watching her right now, on a hidden camera: calling the police.
Wang Sau-leyan was still in full view of Fischer's hidden camera, his well-fleshed face split by a grin that revealed unexpectedly fine teeth.
But, there was a collection of nude photos taken by a hidden camera in the dressing room.