Meaning

noun equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other)

noun television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam

originLearned borrowing from Latin camera (“chamber or bedchamber”), from Ancient Greek καμάρα (kamára, “anything with an arched cover, a covered carriage or boat, a vaulted chamber, a vault”), of Old Iranian origin, from Proto-Iranian *kamarā- (“something curved”), from *kamárati, from Proto-Indo-Iranian *kmárati, ultimately from Proto-Indo-European *kh₂em- (“to bend, curve”). Doublet of chamber.…

Etymology from Wiktionary, CC BY-SA 3.0