the ancient Roman goddess of the dawn.
(lowercase) Meteorology. a radiant emission from the upper atmosphere that occurs sporadically over the middle and high latitudes of both hemispheres in the form of luminous bands, streamers, or the like, caused by the bombardment of the atmosphere with charged solar particles that are being guided along the earth’s magnetic lines of force.
a city in central Colorado, near Denver.
a city in NE Illinois.
a female given name.
noun (pl) -ras, -rae (-riː)
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
(poetic) the dawn
the Roman goddess of the dawn Greek counterpart Eos
the dawn or rise of something
another name for Maewo
late 14c., from Latin Aurora, the Roman goddess of dawn, from PIE *ausus- “dawn,” also the name of the Indo-European goddess of the dawn, from root *aus- “to shine,” especially of the dawn (cf. Greek eos “dawn,” auein “to dry, kindle;” Sanskrit usah, Lithuanian ausra “dawn;” Latin auster “south wind,” usum “to burn;” Old English east “east”).
Plural auroras or aurorae (ə-rôr’ē)
A brilliant display of bands or folds of variously colored light in the sky at night, especially in polar regions. Charged particles from the solar wind are channeled through the Earth’s magnetic field into the polar regions. There the particles collide with atoms and molecules in the upper atmosphere, ionizing them and making them glow. Auroras are of greatest intensity and extent during periods of increased sunspot activity, when they often interfere with telecommunications on Earth. ◇ An aurora that occurs in southern latitudes is called an aurora australis (ô-strā’lĭs) or southern lights. When it occurs in northern latitudes it is called an aurora borealis (bôr’ē-āl’ĭs) or northern lights. See also magnetic storm.
of or like the dawn. pertaining to the or . Historical Examples The Burneys, however, can do no more for us than shed that auroral dew. The London Mercury, Vol. I, Nos. 1-6, November 1919 to April 1920 Various Color said to have been the same as that of the auroral glow in the north. […]
- Auroral zone
the region surrounding the north or south geomagnetic pole in which the auroral phenomena take place.
noun a fear of the Northern or Southern Lights Word Origin aurora ‘dawn, streamers of light’
- Aurore sauce
noun a béchamel sauce with tomato purée added to make it pink Examples Delicate Aurore sauce can be served with fish and egg dishes. Word Origin from Aurore, France Usage Note cooking