Source : Webster's Revised Unabridged Dictionary (1913)

Haematic \H[ae]*mat"ic\, a. [Gr. ?]
   Of or pertaining to the blood; sanguine; brownish red.

   {H[ae]matic acid} (Physiol.), a hypothetical acid, supposed
      to be formed from hemoglobin during its oxidation in the
      lungs, and to have the power of freeing carbonic acid from
      the sodium carbonate of the serum. --Thudichum.