D defs.my
Entry 1 sense Webster, 1913

Coercive

/kō-ẽrs'-ĭv/ · Co·er·cive · IPA /kəʊˈɜː(ɹ)sɪv/
01 a. Serving or intended to coerce; having power to constrain.
  1. 1.
    Serving or intended to coerce; having power to constrain.
    Coercive power can only influence us to outward practice.” — Bp. Warburton.
    “The power of resisting magnetization or demagnization is sometimes called coercive force.” — S. Thompson.
Phrases & compounds
Coercive force — the power or force which in iron or steel produces a slowness or difficulty in imparting magnetism to it, and also interposes an obstacle to the return of a bar to its natural state when active magnetism has ceased. It plainly depends on the molecular constitution of the metal.