heat absorbed or radiated during a change of phase at constant temperature and pressure.
(no longer in technical usage) the heat evolved or absorbed by unit mass (specific latent heat) or unit amount of substance (molar latent heat) when it changes phase without change of temperature
The quantity of heat absorbed or released by a substance undergoing a change of state, such as ice changing to liquid water or liquid water changing to ice, at constant temperature and pressure. The latent heat absorbed by air when water vapor condenses is ultimately the source of the power of thunderstorms and hurricanes. See also heat capacity.
The heat released or absorbed when matter undergoes a change of phase (see phases of matter). If the heat is given off during the change from a liquid to a solid, it is called heat of fusion. If it is given off during the change from a gas to a liquid, it is called heat of vaporization.
- Latent homosexuality
latent homosexuality n. A sexual tendency toward members of the same sex that is not consciously recognized or not expressed overtly.
- Latent hyperopia
latent hyperopia n. Abbr. Hl Hyperopia that can be overcome by accommodation and can only be revealed by administration of a mydriatic drug.
noun, Photography. 1. an invisible image, produced on a sensitized emulsion by exposure to light, that will emerge in development. noun 1. (photog) the invisible image produced by the action of light, etc, on silver halide crystals suspended in the emulsion of a photographic material. It becomes visible after development
- Latent learning
noun 1. (psychol) learning mediated neither by reward nor by the expectation of reward latent learning n. Learning that is not the result of determined effort and is not evident at the time it occurs, but remains latent until a need for it arises.