| Hess, Alfred | <person> U.S. Physician, 1875-1933. See: Hess' test. (05 Mar 2000) |
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| Hess, Carl von | <person> German ophthalmologist, 1863-1923. See: Hess screen. (05 Mar 2000) |
| Hess' law | The amount of heat generated by a reaction is the same whether the reaction takes place in one step or several steps; i.e., dH values (and thus dG values) are additive. (05 Mar 2000) |
| Hess screen | A screen used in the measurement of ocular deviation. (05 Mar 2000) |
| hess's law | <chemistry> In going from a particular set of reactants to a particular set of products, the enthalpy change is the same whether the reaction takes place in one step or a series of steps, in other words, enthalpy is a state function. (09 Jan 1998) |
| Hess' test | A tourniquet test for capillary fragility, often positive in the presence of severe thrombocytopenia. See: capillary fragility test. Synonym: bandage sign, Hess' test, Rumpel-Leede sign. (05 Mar 2000) |
| Hess, Walter | <person> Swiss physiologist and Nobel laureate, 1881-1973. See: trophotropic zone of Hess. (05 Mar 2000) |
| trophotropic zone of Hess | An area in the hypothalamus concerned with rewarding bodily sensations. (05 Mar 2000) |