D defs.my
Entry 3 senses Webster, 1913

oestrus

· oes·trus · IPA /ˈiːstɹəs/
01 n. A genus of gadflies. The species which deposits its larvae in the nasal cavities of sheep is oestrus ovis.
  1. 1.
    A genus of gadflies. The species which deposits its larvae in the nasal cavities of sheep is oestrus ovis.(Zool.)
  2. 2.
    A vehement desire.
  3. 3.
    The periodical sexual impulse of animals; the period during which female animals are most receptive to males; heat; rut.(Physiol.)