The unit of measure was one ten-millionth part of the distance between the equator and the north pole thus measured.
If there be an error such as is supposed, then the metre ceases to be what it was called originally, one ten-millionth part of the distance from the equator to the north pole.
Nitrate of silver is such a delicate reagent of hydrochloric or muriatic acid, as to show by a sensible cloud, the presence of one 113 millionth part of it, or one 7 millionth part of sea-salt in distilled water.
A balance made by Ramsden for the Royal Society, is capable of weighing ten pounds, and turns with one hundredth of a grain, which is the seven-millionth part of the weight.
To transmit a telephone message requires less than a hundred-millionth part of the current required for a telegraphic message.
The air was then pumped out until only about a millionth part remained.
They were able to pump the air out of a glass bulb until less than a millionth part of the air remained.
She determined that the base of this neutral system should be the ten-millionth part of a quadrant of the meridian.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "millionth part" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.