waterlase
n.— «Unlike a conventional drill, waterlase—as it’s called—never touches a tooth. Instead, the tool shoots out a laser beam, combined with water, to quickly ream out a cavity.» —“Health Watch: New Water Laser” by Monika Sangani KTEN-TV (Ada, Okla.) Feb. 7, 2005. (source: Double-Tongued Dictionary)
Further reading
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The Merriam-Webster.com dictionary now includes an entry for TL;DR, also rendered as TLDR. It’s a speedy way of dismissing overlong text or introducing a shortened version of something. This useful locution also inspired AI;DR, short for AI;didn’t...