clavus

[kley-vuhs, klah-]

cla·vus

[kley-vuhs, klah-]
noun, plural cla·vi [-vahy, -vee] .
1.
Psychiatry. an intense headache in which the pain is likened to one that would be produced by a sharp object driven into the skull.
2.
(in ancient Rome) a vertical stripe or band of purple worn on the tunic by senators and equites.
3.
Entomology. clavola.

Origin:
1800–10; < Latin: literally, nail; akin to claudere to close
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Clavus is always a great word to know.
So is quincunx. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
American Heritage
Medical Dictionary

clavus cla·vus (klā'vəs, klä'-)
n. pl. cla·vi (-vī')

  1. See corn.

  2. A condition resulting from healing of a granuloma of the foot in yaws, in which a core falls out, leaving an erosion.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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