aurora borealis
colorful display of natural lights that can sometimes be seen at nighttime in northern regions, northern lights | ||||
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Aurora borealis definition was found in categories: Language, Idioms & Slang(2) Arts & Humanities(1) Science & Technology(2) Encyclopedia(1)
Aurora borealis Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
aurora borealis
Noun
1. the aurora of the northern hemisphere
(synonym) northern lights
(hypernym) aurora
Noun
1. the aurora of the northern hemisphere
(synonym) northern lights
(hypernym) aurora
| hEnglish - advanced version |
aurora borealis
aurora borealis
n : the aurora of the northern hemisphere [syn: northern lights]
aurora borealis
(&?;), i. e., northern daybreak; popularly called northern lights. a luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. this species of light usually appears in streams, ascending toward the zenith from a dusky line or bank, a few degrees above the northern horizon; when reaching south beyond the zenith, it forms what is called the corona, about a spot in the heavens toward which the dipping needle points. occasionally the aurora appears as an arch of light across the heavens from east to west. sometimes it assumes a wavy appearance, and the streams of light are then called merry dancers. they assume a variety of colors, from a pale red or yellow to a deep red or blood color. the..
see aurora
aurora borealis
n : the aurora of the northern hemisphere [syn: northern lights]
aurora borealis
(&?;), i. e., northern daybreak; popularly called northern lights. a luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. this species of light usually appears in streams, ascending toward the zenith from a dusky line or bank, a few degrees above the northern horizon; when reaching south beyond the zenith, it forms what is called the corona, about a spot in the heavens toward which the dipping needle points. occasionally the aurora appears as an arch of light across the heavens from east to west. sometimes it assumes a wavy appearance, and the streams of light are then called merry dancers. they assume a variety of colors, from a pale red or yellow to a deep red or blood color. the..
see aurora
Aurora borealis Definition from Arts & Humanities Dictionaries & Glossaries
| JM Latin-English Dictionary |
Aurora borealis
The Northern lights
The Northern lights
Aurora borealis Definition from Science & Technology Dictionaries & Glossaries
| WEATHER&METEOROLOGY |
Aurora Borealis
also known as the northern lights - The luminous, radiant emission from the upper atmosphere over middle and high latitudes, and centred around the earth's magnetic poles. These silent fireworks are often seen on clear winter nights in a variety of shapes and colours.
also known as the northern lights - The luminous, radiant emission from the upper atmosphere over middle and high latitudes, and centred around the earth's magnetic poles. These silent fireworks are often seen on clear winter nights in a variety of shapes and colours.
| Astronomy and Physics Terms by ExploreSpace.com |
Aurora borealis
The Northern Lights caused by the interaction between the solar wind, the Earth's magnetic field and the upper atmosphere; a similar effect happens in the southern hemisphere where it is known as the aurora australis.
The Northern Lights caused by the interaction between the solar wind, the Earth's magnetic field and the upper atmosphere; a similar effect happens in the southern hemisphere where it is known as the aurora australis.
Aurora borealis Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Aurora (astronomy)
Auroras (or aurorae) [sing: aurora] are natural colored light displays, which are usually observed in the night sky, particularly in the polar zone. Some scientists therefore call them "polar auroras" (or "aurorae polaris").
In northern latitudes, it is known as the aurora borealis, named after the Roman goddess of the dawn, Aurora, and the Greek name for north wind, Boreas. It often appears as a greenish glow (or sometimes a faint red), as if the sun were rising from an unusual direction. The aurora borealis is also called the northern lights, as it is only visible in the North sky from the Northern Hemisphere. The aurora borealis most often occurs from September to October and from March to April.
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