any tick of the family Ixodidae, characterized by a hard shield on the back and mouth parts that project from the head.
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 …
Compare soft tick.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019