CLAVUS
\klˈavəs], \klˈavəs], \k_l_ˈa_v_ə_s]\
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By Henderson, I. F.; Henderson, W. D.
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This word is employed in medicine in various senses. It means, 1. A Corn, from its resemblance to the head of a nail. 2. Certain condylomatous excrescences of the uterus. 3. A callous tumour, which forms on the white of the eye, and resembles a nail, the Clavus Oc'uli, (F.) Clou de I'oeil. This last, by some, is considered to be synonymous with staphyloma; by others, with staphyloma of the cornea. Also, the penis.
By Robley Dunglison
By Willam Alexander Newman Dorland
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A corn. A small circumscribed callus, which, from external pressure, is forced downward as a conical plug.
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The morbid condition in cereals produced by parasitic fungi; so called because the young grain affected takes the form of a nail or club.
By Smith Ely Jelliffe