| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Indirect gain | Geography | This system uses solar energy to heat a thermal mass and then transfers this heat to the living space. The thermal mass intercepts and stores the solar radiation before it enters the living space, and distribution of this energy is effected by means of conduction through the mass and reradiation to the living space. Sometimes convection is also used. Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
