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- Dictionaryaurora/ɔːˈrɔːrə/
noun
- 1. a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole. The effect is caused by the interaction of charged particles from the sun with atoms in the upper atmosphere. In northern and southern regions it is respectively called aurora borealis or Northern Lights and aurora australis or Southern Lights.
- 2. the dawn. literary
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a natural appearance of coloured light in the sky that is usually seen in the latitudes (= parts of earth) nearest the Arctic or Antarctic. nicolamargaret/Vetta/GettyImages. SMART Vocabulary: related words and phrases. Weather & climate - general words. aneroid barometer. anthelion. aurora australis. aurora borealis. barometric. climate.
Auroras are the result of disturbances in the Earth's magnetosphere caused by the solar wind. Major disturbances result from enhancements in the speed of the solar wind from coronal holes and coronal mass ejections. These disturbances alter the trajectories of charged particles in the magnetospheric plasma.
: a luminous phenomenon that consists of streamers or arches of light appearing in the upper atmosphere of a planet's magnetic polar regions and is caused by the emission of light from atoms excited by electrons accelerated along the planet's magnetic field lines. auroral. ə-ˈrȯr-əl. ȯ- adjective. aurorean. ə-ˈrȯr-ē-ən. ȯ- adjective. Synonyms.
an atmospheric phenomenon consisting of bands, curtains, or streamers of light, usually green, red, or yellow, that move across the sky in polar regions. It is caused by collisions between air molecules and charged particles from the sun that are trapped in the earth's magnetic field. 2. poetic.
6 days ago · Frequently there are beautiful light shows in the sky. These lights are called auroras. If you're near the North Pole, it is called an aurora borealis or northern lights. If you're near the South Pole, it is called an aurora australis or the southern lights.
Oct 19, 2023 · Vocabulary. An aurora is a natural light display that shimmers in the sky. Blue, red, yellow, green, and orange lights shift gently and change shape like softly blowing curtains. Auroras are only visible at night, and usually only appear in lower polar regions.
AURORA meaning: 1. a natural appearance of coloured light in the sky that is usually seen in the latitudes (= parts…. Learn more.
May 10, 2024 · An aurora is one of nature’s most spectacular sights, a dazzling glow in the upper atmosphere driven by space weather.
an atmospheric phenomenon consisting of bands, arcs, and streamers seen in different colors. Synonyms: cockcrow, dawn, first light, daylight, light, sun, sunrise, sunup, day, daybreak, morn, morning. Etymology: Middle English from the Latin aurōra, meaning dawn.
An aurora is a beautiful astronomical light show. If you look up at night and see bright bands of light, it's not an invasion by aliens: it's a natural, electrical phenomenon called an aurora. An aurora can happen at either of the Earth's magnetic poles, north or south.
