any tick of the family Ixodidae, characterized by a hard shield on the back and mouth parts that project from the head.
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Tick, Tock: What Is The “Doomsday Clock?”
What is the Doomsday Clock? Doomsday is one of those evocative words that paint a very vivid picture. As our definition states, “the day of the Last Judgment, at the end of the world; nuclear destruction of the world; given to or marked by forebodings or predictions of impending calamity; especially concerned with or predicting future universal destruction.” As you can see, it’s about as bottom …
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019