Definition of "aurorae" []

• A plural of aurora. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The light shows, called aurorae, are produced when electrically charged particles race along the planet's magnetic field and into the upper atmosphere where they excite atmospheric gases, causing them to glow."
• "And how does its intense magnetic field shape its environment, including the aurorae and those lethal radiation belts?"
• "The orbit sweeps over the poles to provide our first clear views of those regions and their spectacular displays of aurorae."