(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
a rocket-propelled guided missile that can escape the earth's atmosphere; makes observations of the solar system that cannot be made by terrestrial observation
based on custom rather than documentation; "an unwritten law"; "rites...so ancient that they well might have had their unwritten origins in Aurignacian times"- J.L.T.C.Spence
(Greek mythology) 7 daughters of Atlas and half-sisters of the Pleiades; they nurtured the infant Dionysus and Zeus placed them among the stars as a reward
concerned with effect or style of writing and speaking; "a rhetorical question is one asked solely to produce an effect (especially to make an assertion) rather than to elicit a reply"
of or relating to rhetoric; "accepted two or three verbal and rhetorical changes I suggested"- W.A.White; "the rhetorical sin of the meaningless variation"- Lewis Mumford