Source : Webster's Revised Unabridged Dictionary (1913)

Expectant \Ex*pect"ant\, a. [L. expectans, exspectans, p. pr. of
   expectare, exspectare: cf. F. expectant.]
   Waiting in expectation; looking for; (Med.) waiting for the
   efforts of nature, with little active treatment.

   {Expectant estate} (Law), an estate in expectancy. See under
      {Expectancy}.