Term: register: an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: commissioned naval officer: a commissioned officer in the navy
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: gut: a narrow channel or strait
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: biomedical science: the application of the principles of the natural sciences to medicine
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: lent: a period of 40 weekdays from Ash Wednesday to Holy Saturday
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: dianthus: carnations and pinks
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: chloroxylon: deciduous trees of India and Sri Lanka
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: whipping post: post formerly used in public to which offenders are tied to be whipped
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: rubidium-strontium dating: geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47,000,000,000 years
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: ice hockey rink: an ice rink for playing ice hockey
Broader: air passage: a duct that provides ventilation (as in mines) | Unrelated: ground rule: (baseball) a special rule (as in baseball) dealing with situations that arise due to the nature of the playing grounds