Johnston\'s organ

 [jon-stuhnz]  

Johnston's organ

   [jon-stuhnz]
noun Entomology.
a sense organ in the second segment of the antenna of an insect, sensitive to movements of the antenna's flagellum, as when the insect is in flight.
Origin:
named after Christopher Johnston (died 1891), American physician
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Johnston's organ is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a chattering or flighty, light-headed person.
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