eta meaning, definition, what is eta: the seventh letter of the Greek alphabet. Learn more.
shafts definition, shafts meaning | English dictionary. shaft. 1 the long narrow pole that forms the body of a spear, arrow, etc. 4 a rod or pole forming the handle of a hammer, axe, golf club, etc.
Definition of beam. 1  transitive verb. 2  1 : to emit in beams or as a beam (see 1beam 2) The sun beamed its light through the window. 3  2 : to support with beams (see 1beam 1) The house was beamed with heavy timbers.