noun
: an accounting of the income, use, and loss of energy especially in an ecosystem
the sun's contribution to the energy budget of the earth — M.K.Hubbert
noun
: an accounting of the income, use, and loss of energy especially in an ecosystem
the sun's contribution to the energy budget of the earth — M.K.Hubbert
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012