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.
Define beam: a long piece of heavy often squared timber suitable for use in construction â beam in a sentence a long piece of heavy often squared timber suitable for use in construction; a wood or metal cylinder in a loom on which the warp is woundâ¦ See the full definition