1866 31 Mar. 215/1 The writer calls attention to the non-reciprocal character of the Canadian patent system.
1903 10 221 Upon eliminating t, there results a non-reciprocal quartic for k.
1949 58 3 A ‘determining’ element which qualifies it in some non-reciprocal way.
1990 4 75/1 Data were fitted to the non-reciprocal forms of the following equations.