HEAT n.
mic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4. -- Dynamical theory of heat, that theory of heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter. Heat engine, any appar…
HERALD n.
the Chester, Lancaster, Richmond, Somerset, Windsor, and York Heralds, together with the Earl Marshal. This retains from the Middle Ages the charge of the armorial bearings of persons privileged to bear them, as well as of genealogies and kindred subjects; -- called also College of Arms.
HESSIAN a.
y, or to the Hessians. Hessian boots, or Hessians, boot of a kind worn in England, in the early part of the nineteenth century, tasseled in front. Thackeray. -- Hessian cloth, or Hessians, a coarse hempen cloth for sacking. -- Hessian crucible. See under Crucible. -- Hessian fly (Zoöl.), a small dipterous fly or mid…