SUBSISTENCE DEPARTMENT n.
A staff department of the United States army charged, under the supervision of the Chief of Staff, with the purchasing and issuing to the army of such supplies as make up the ration. It also supplies, for authorized sales, certain articles of food and other minor stores. It is commanded by any officer of the rank of b…
SYMBIOSIS n.
s. In a broad sense the term includes parasitism, or antagonistic, or antipathetic, symbiosis, in which the association is disadvantageous or destructive to one of the organisms, but ordinarily it is used of cases where the association is advantageous, or often necessary, to one or both, and not harmful to either. When…