knockout mouse
n.— «A “knock-out” mouse has a gene missing, a “knock-in” mouse has had one changed or substituted.» —“Genetic science alters war on animal rights” by Kirsty Milne Scotsman (Edinburgh, Scotland) Aug. 28, 2005. (source: Double-Tongued Dictionary)
Further reading
Eels, orts, and Wordle! Sweden awarded its most prestigious literary award to a book about…eels. The Book of Eels reveals the mysterious life cycle of this sea creature and its significance for famous figures from Aristotle to Sigmund Freud. Plus...
The word dezzick is defined in an 1875 dictionary of the Sussex dialect as “a day’s work.” This is part of a complete episode.
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