tin whisker
n.— «Tin whiskers were first reported in 1951. They are single crystals of tin filaments, usually having diameters of 0.5 to 5µm and lengths up to a few millimeters.» —by Mordechay Schlesinger Modern Eletroplating Aug. 10, 2000. (source: Double-Tongued Dictionary)
Further reading
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...