Dehorn \De*horn"\, v. t. [imp. & p. p. {Dehorned}; p. pr. & vb. n. {Dehorning}.] To deprive of horns; to prevent the growth of the horns of (cattle) by burning their ends soon after they start. See {Dishorn}. ``Dehorning cattle.'' --Farm Journal (1886).
dehorn v 1: prevent the growth of horns of certain animals 2: take the horns off (an animal)