white line

white line

n.

See linea alba.

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white line

1. the fusion between the wall and the sole of the hoof as seen in the horse.

2. the linea alba.

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white line disease

a disease in sheep in which the wall of the hoof separates from the sole at the white line over a short part of its length. The cavity that is formed becomes packed with dirt causing pressure on the sensitive laminae and lameness. Eventually the cavity penetrates to the coronet and develops a sinus there.