on-camera

[on-kam-er-uh, -kam-ruh, awn-] /ˈɒnˈkæm ər ə, -ˈkæm rə, ˈɔn-/
adjective, adverb
1.
within the range of a motion-picture or television camera; while being filmed or televised:
on-camera blunders; The assassination happened on-camera.
Origin
1960-65

camera

[kam-er-uh, kam-ruh] /ˈkæm ər ə, ˈkæm rə/
noun, plural cameras for 1, 2, camerae
[kam-uh-ree] /ˈkæm ə ri/ (Show IPA), for 3.
1.
a boxlike device for holding a film or plate sensitive to light, having an aperture controlled by a shutter that, when opened, admits light enabling an object to be focused, usually by means of a lens, on the film or plate, thereby producing a photographic image.
2.
(in a television transmitting apparatus) the device in which the picture to be televised is formed before it is changed into electric impulses.
3.
a judge's private office.
adjective
4.
Printing. camera-ready.
Idioms
5.
in camera,
  1. Law. in the privacy of a judge's chambers.
  2. privately.
6.
off camera, out of the range of a television or motion-picture camera.
7.
on camera, being filmed or televised by a live camera:
Be sure to look alert when you are on camera.
Origin
1700-10; < Latin camera vaulted room, vault < Greek kamára vault; see chamber
British Dictionary definitions for on camera

camera

/ˈkæmərə; ˈkæmrə/
noun
1.
an optical device consisting of a lens system set in a light-proof construction inside which a light-sensitive film or plate can be positioned See also cine camera, digital camera
2.
(television) the equipment used to convert the optical image of a scene into the corresponding electrical signals
3.
See camera obscura
4.
(pl) -erae (-əˌriː). a judge's private room
5.
in camera
  1. (law) relating to a hearing from which members of the public are excluded
  2. in private
6.
off camera, not within an area being filmed
7.
on camera, (esp of an actor) being filmed
Word Origin
C18: from Latin: vault, from Greek kamara
Word Origin and History for on camera

camera

n.

1708, "vaulted building," from Latin camera "vaulted room" (source of Italian camera, Spanish camara, French chambre), from Greek kamara "vaulted chamber."

The word also was used early 18c. as a short form of Modern Latin camera obscura "dark chamber" (a black box with a lens that could project images of external objects), contrasted with camera lucida (Latin for "light chamber"), which uses prisms to produce on paper beneath the instrument an image, which can be traced. It became the word for "picture-taking device" when modern photography began, c.1840 (extended to television filming devices 1928). Camera-shy is attested from 1890. Old Church Slavonic komora, Lithuanian kamara, Old Irish camra all are borrowings from Latin.

on camera in Medicine

camera cam·er·a (kām'ər-ə, kām'rə)
n. pl. cam·er·ae (-ə-rē)
A chamber or cavity, such as one of the chambers of the heart or eye.

Idioms and Phrases with on camera

on camera

Being filmed, as in When the talk-show host began, I wasn't sure if we were on camera. This usage dates from the first half of the 1900s, soon after the birth of motion-picture and television filming. The same is true of the antonym off camera, meaning “outside the view of a movie or TV camera,” as in Go ahead and scratch—we're off camera now.