zero-fieldhttp://www.oed.com/dictionary/zero-field_adj%3Ftab%3Dmeaning_and_usezero-field, adj.
First published 2018

zero-fieldadjective

  1. 1915–
    attributive designating a property, phenomenon, etc., relating to a condition in which a magnetic or other field is absent, or has an intensity of zero.
    1. 1915
      When the two frequencies are different, this position is constantly changing and the pointer will rotate ‘fast’ or ‘slow’, coming to rest at the zero-field position when the frequencies are equal.
      F. M. Farmer in F. F. Fowle, Standard Handbook Electr. Engineers (ed. 4) iii. 184
    2. 1967
      The zero-field emission is obtained by prolonging the straight asymptote of the Schottky plots to the V = 0 line.
      British Journal Applied Physics vol. 18 629
    3. 2004
      We employ the terminology of the negative magneto-resistance wherever the B field reduces the zero-field resistance.
      K. Nakamura & T. Harayama, Quantum Chaos & Quantum Dots ix. 162

Originally published as part of the entry for zero, n. & adj.

zero-field, adj. was first published in 2018.