n. Greek Mythology The muse of astronomy. [Latin Ūrania, from Greek Ouraniā, from ouranos, heaven.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. Uranium dioxide. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.