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 axial. 1  1 : of, relating to, or having the characteristics of an axis. 2  2a : situated around, in the direction of, on, or along an axisb : extending in a direction essentially perpendicular to the plane of a cyclic structure (as of cyclohexane) axial hydrogens â compare equatorial.