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In the metric system, one million meters, or one thousand kilometers.

Sulphide of mercury in isometric form and black in color.

A measure of length, equal to 39.37 English inches, the standard of linear measure in the 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…

Composition in metrical form; versification. [R.] Tennyson.

ument for recording minor fluctuations of atmospheric pressure, as opposed to general barometric surges.

A weight of the metric system, being one million grams; a metric ton.

A measure of weight, in the metric system, being the thousandth part of a gram, equal to the weight of a cubic millimeter of water, or .01543 of a grain avoirdupois.

A measure of capacity in the metric system, containing the thousandth part of a liter. It is a cubic centimeter, and is equal to .061 of an English cubic inch, or to .0338 of an American fluid ounce.

A lineal measure in the metric system, containing the thousandth part of a meter; equal to .03937 of an inch. See 3d Meter.

A metrical composition consisting of a single strophe.

A prefix, esp. in the metric system, indicating ten thousand, ten thousand times; as, myriameter.

A metric weight, consisting of ten thousand grams or ten kilograms. It is equal to 22.046 lbs. avoirdupois.

A metric measure of capacity, containing ten thousand liters. It is equal to 2641.7 wine gallons.

A metric measure of length, containing ten thousand meters. It is equal to 6.2137 miles.

A measure of surface in the metric system containing ten thousand ares, or one million square meters. It is equal to about 247.1 acres.

in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata.

Any one of a group of metametric hydrocarcons (C8H18) of the methane series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.

A division of spiders, including those that make geometrical webs, as the garden spider, or Epeira.

system of crystallization which has three unequal axes at right angles to each other; trimetric. See Crystallization.

One of the symmetrical halves of any one of the radii, or spheromeres, of a radiate animal, as a starfish.