a tearing away.
Law. the sudden removal of soil by change in a river’s course or by a flood, from the land of one owner to that of another.
a part torn off.
Historical Examples

avulsion of the tuberosity of the tibia occasionally occurs in youths, from violent contraction of the quadriceps—as in jumping.
Manual of Surgery Volume Second: Extremities–Head–Neck. Sixth Edition. Alexander Miles

By a quick movement of avulsion the tumour is then torn from its attachment.
A System of Operative Surgery, Volume IV (of 4) Various

If the nails are affected, avulsion will probably be needed before the disease can be reached.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 Various

avulsion is usually not complete and only results in a larger iridectomy than was intended.
A System of Operative Surgery, Volume IV (of 4) Various

The growth should not be cut through, as it is wiser to pluck it from its attachment by a quick movement of avulsion.
A System of Operative Surgery, Volume IV (of 4) Various

a forcible tearing away or separation of a bodily structure or part, either as the result of injury or as an intentional surgical procedure
(law) the sudden removal of soil from one person’s land to that of another, as by flooding

avulsion a·vul·sion (ə-vŭl’shən)
The forcible tearing away of a body part by trauma or surgery.


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