A power plant that uses both natural gas and steam to have higher efficiency of power generation from the same amount of fuel.

(physics) The observation that the sums and differences of the frequencies of spectral lines often equal other observed frequencies; a consequence of quantum mechanics.

(physics) Synonym of Ritz's combination principle

The state or quality of being combined.

In combination; jointly

(archaic) second-person singular simple present form of combine

(archaic) third-person singular simple present indicative form of combine