  The dispersion relations for conventional uniaxial dielectric mediums may be
characterized as elliptical or elliptical-like, according to whether the medium
is nondissipative or dissipative, respectively. However, under certain
constitutive parameter regimes, the dispersion relations may be hyperbolic or
hyperbolic-like. We investigate planewave propagation in a
hyperbolic/hyperbolic-like uniaxial dielectric medium. For both evanescent and
nonevanescent propagation, the phase velocity is found to be positive with
respect to the time-averaged Poynting vector. A conceptualization of a
hyperbolic--like uniaxial medium as a homogenized composite medium is
presented.
