Term: camera obscura: a darkened enclosure in which images of outside objects are projected through a small aperture or lens onto a facing surface
Broader: chamber: a natural or artificial enclosed space | Unrelated: initial: the first letter of a word (especially a person's name)
Broader: chamber: a natural or artificial enclosed space | Unrelated: irritation: the psychological state of being irritated or annoyed
Broader: chamber: a natural or artificial enclosed space | Unrelated: humpback: large whalebone whale with long flippers noted for arching or humping its back as it dives
Broader: chamber: a natural or artificial enclosed space | Unrelated: planking: (nautical) a covering or flooring constructed of planks (as on a ship)
Broader: chamber: a natural or artificial enclosed space | Unrelated: overlip: the upper lip
Broader: chamber: a natural or artificial enclosed space | Unrelated: outrigger: a stabilizer for a canoe; spars attach to a shaped log or float parallel to the hull
Broader: chamber: a natural or artificial enclosed space | Unrelated: tabun: the first known nerve agent, synthesized by German chemists in 1936; a highly toxic combustible liquid that is soluble in organic solvents and is used as a nerve gas in chemical warfare
Broader: chamber: a natural or artificial enclosed space | Unrelated: eclampsia: a toxic condition characterized by convulsions and possibly coma during or immediately after pregnancy
Broader: chamber: a natural or artificial enclosed space | Unrelated: kronecker delta: a function of two variables i and j that equals 1 when i=j and equals 0 otherwise
Broader: chamber: a natural or artificial enclosed space | Unrelated: freeman: a person who is not a serf or a slave