plexorn.
/ˈplɛksə/, U.S. /ˈplɛksər/ Medicine. Now rare.
A small hammer, other instrument, or finger used to strike the pleximeter or the body in percussion; (also) a reflex hammer. Also called plessor.
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the world > health and disease > healing > medical appliances or equipment > other surgical equipment > [noun] > percussion hammer
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the world > health and disease > healing > diagnosis or prognosis > examination > [noun] > auscultation > percussion > instruments used in
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1844 R. Dunglison Dict. Med. Sci. (ed. 4) Plexor, any instrument employed in percussion.
1895 New Sydenham Soc. Lexicon Plexor, a striker; used specifically of that which strikes in Medical percussion. This may be either a hammer or the fingers of the physician.
1910 A. Abrams Spondylotherapy i. 9 (caption) Plexor and pleximeter employed for eliciting the vertebral reflexes.
1916 A. Abrams New Concepts Diagnosis & Treatm. ii. 31 For those unskilled in finger-finger percussion, the plexor and pleximeter shown in fig. 13 have been devised by the author.
1997 Amer. Nephrol. Nurses' Assoc. Jrnl. (Nexis) 24 209 This finger is the pleximeter and it is struck a sharp blow by the right middle finger or the plexor.
2000 Richmond (Va.) Times Dispatch (Nexis) 12 Dec. (City ed.) a18 One could see the homosexual lobby's knee-jerk reaction a mile away, as if a doctor's plexor had tested the group's reflexes.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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