One of the mysteries of the English language finally explained.
Belonging to or characteristic of the acarine group Gamasida (in early use restricted to the former family Gamasidae), comprising mites that are typically free-living and predatory, and some that are parasitic or commensal.
A gamasid mite.
Late 19th century. From scientific Latin Gamasus, genus name (Latreille, 1802), specific use of post-classical Latin gamasus agile + -id, after scientific Latin Gamasidae, former family name, or (in later use) Gamasida, group name.
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