clavus

/kley-vuhs, klah-/US // ˈkleɪ vəs, ˈklɑ- //

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Definitions

n.名词 noun

1
plural cla·vi [kley-vahy, -vee]. /ˈkleɪ vaɪ, -vi/.
- : Psychiatry. an intense headache in which the pain is likened to one that would be produced by a sharp object driven into the skull.
- : a vertical stripe or band of purple worn on the tunic by senators and equites.
- : Entomology. clavola.

They appear to be the origin of the “clavus” or nail-headed pattern woven into silks in the Palace of the Cæsars.
I shall discuss the Latin Clavus and the Chrysoclavus amongst ecclesiastical embroideries, pp. 308, 336 (post).
Claval suture: Hemiptera; at the base of hemelytra, separating the clavus.
Hysterical patients describe a sensation as if a nail were being driven into the forehead—the so-called clavus hystericus.
Some of the worst cases of clavus, probably, that have ever been seen were developed in the old days of phlebotomy.