An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

A building with transparent walls and roof, usually of glass, for the cultivation and exhibition of plants under controlled conditions (Dictionary.com).

→ green; → house.

Garmxâné, literally "warm house," from garm, → warm, + xâné, → house.

An increase in → temperature caused when incoming → solar radiation is passed but outgoing → thermal radiation is trapped by the → atmosphere. The major factors for this effect are → carbon dioxide and → water vapor. The greenhouse effect is very important on Venus and Earth but very weak on Mars. On average, about one third of the solar radiation that hits the Earth is reflected back to space. The Earth's surface becomes warm and emits → infrared radiation. The → greenhouse gases trap the infrared radiation, thus warming the atmosphere. Without the greenhouse effect the Earth's average global temperature would be -18° Celsius, rather than the present 15° Celsius. However, human activities are causing greenhouse gas levels in the atmosphere to increase.

→ greenhouse; → effect.

Gases responsible for the greenhouse effect. These gases include: water vapor (H₂O), carbon dioxide (CO₂); methane (CH₄); nitrous oxide (N₂O); chlorofluorocarbons (CF_xCl_x); and tropospheric ozone (O₃).

→ greenhouse; → gas.

1) A building in which people live.
2) A building for any purpose. → greenhouse.

M.E. h(o)us, from O.E. hus "dwelling, shelter, house;" cf. O.N. hus; Du. huis; Ger. Haus .

Xâné "house," from Mid.Pers. xânak, xân, xôn; Aftari dialect kiye "house, home;" Xonsâri ki "house;" Anâraki xiya, Tâti Karingân kâ, Sangesari keh "house, home;" cf. L. cunae "cradle; bed;" Gk. kome "village;" PIE base *kei- "bed; to lie, to settle; beloved" (other cognates: O.E. ham "dwelling, house, village;" E. home; Ger. Heim; L. civis "townsman;" Fr. cité; E. city; Skt. śiva- "auspicious, dear").

A building for storing ice throughout the year, mainly used prior to the invention of the refrigerator.

→ ice; → house.

Yaxcâl, literally "a pit of ice," but "any place or vessel in which ice is kept," from yax, → ice, + câl "pit, → hole."