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Being the last one of a million of units or objects counted in regular order from the first of a series or succession; being one of a million.

metric system of weights and measures. It was intended to be, and is very nearly, the ten millionth part of the distance from the equator to the north pole, as ascertained by actual measurement of an arc of a meridian. See Metric system, under Metric. Common meter (Hymnol.), four iambic verses, or lines, making a stanz…

prefixes mega- and micro- are sometimes used to denote a multiple by one million, and the millionth part, respectively. See the words formed with these prefixes in the Vocabulary. For metric tables, see p. 1682.

One of the smaller measures of electrical currents; the millionth part of one ampère.

A measure of electrical quantity; the millionth part of one coulomb.

The millionth part of a farad.

The millionth part of an ohm.

The millionth part of a meter.

A measure of length; the thousandth part of one millimeter; the millionth part of a meter.

A measure of electro-motive force; the millionth part of one volt.

The millionth part of one weber.

The thousandish part of a micron or the millionth part of a millimeter; -- a unit of length used in measuring light waves, etc.

measurement of many small lengths, such that 1010 of these units make one meter; the ten millionth part of a millimeter.

Having the properties exhibited by gases under very low pressures (one millionth of an atmosphere or less). Matter under this condition, which has been termed the fourth state of matter, is sometimes called radiant matter.