sphero-, spher-, -sphere-

Referring to the texture of a rock composed of numerous spherulites.

In geology, the part of the earth's crust that contains stratified rocks.

1. The upper region of the earth's atmosphere between the troposphere and mesosphere, from 6 miles or 10 kilometers to 30 miles or 50 kilometers above the earth's surface: Modern passenger aircraft are designed to fly in the stratosphere where there are no clouds.

The stratosphere has no clouds and consists of gradual temperature increases.

2. In former use, it referred to all of the atmosphere above the troposphere.
3. A very high or the highest level or position.
4. The nearly uniform cold ocean water masses in high latitudes and near-bottom waters of middle and low latitudes; ocean water below the thermocline.

1. A reference to the region of the earth's atmosphere between the troposphere and mesosphere, from 10 kilometers (6 miles) to 50 kilometers (30 miles) above the earth's surface.

It has no clouds and is marked by gradual increases in temperature.

2. A descriptive term for very high or the highest level or position of something, or the greatest amount: "The excessively cold weather this spring probably will cause a decrease in agricultural products and so result in stratospheric food prices."
3. Referring to extremely high or the highest point or degree on a ranked scale: "Because of the increase in oil prices, gas prices have shot up stratospherically this week."

A concept derived from Greek astronomy in which the region of the cosmos from the earth to the moon, consists of the four classical elements: earth, water, air, and fire.

Beginning with the moon, up to the limits of the universe, everything is made of ether.

The lowest layer of the earth's atmosphere, at a height of about 12 miles or 20 kilometers above the earth.

1. The technological aspect of human activity.
2. In ecology, a collective term for all of those aspects of the physical environment that have been created or altered by humans.

1. A part of the earth that moves during plate tectonic activity.
2. The region of the earth's crust occupied by the tectonic plates.

An apparatus showing how the movement of the earth on its axis and around the sun creates the seasons, and day and night.

A tellurion is a model that shows how day and night and the seasons result from the earth's orbit and its tilted axis in relation to the sun.

1. A highly lethal neurotoxin present in numerous species of puffer fish and in certain newts (in which it is called tarichatoxin).

Ingestion rapidly causes malaise, dizziness, and tingling around the mouth, which may be followed by ataxia, convulsions, respiratory paralysis, and death.

2. A potent neurotoxin found in the liver, skin, and ovaries of the puffer fish, and in the California newt.
3. A powerful nerve poison found in the eggs of the California newt and in certain puffer fish in Japan.

In concentrated form, it is more toxic than cyanide.

You can find more information about tetrodotoxin here.

In meteorology, the atmospheric layer, constituting essentially all of the atmosphere above the mesosphere (that is, above about 80-90 km altitude), in which temperature increases with height; includes the exosphere and most or all of the ionosphere.

In the area above the mesosphere, the temperature increases with altitude up to about 200 km, and above that it varies widely depending on the degree of solar activity with temperatures as high as 2000 degrees C are said to be possible.

A young larval form of many annelids, mollusks, and bryozoans, in which a circle of cilia is developed around the anterior end.

The lowest and most dense layer of the atmosphere, extending 10 to 20 kilometers (6 to 12 miles), within which temperature decreases with rising altitude and where most nearly all cloud formations occur and weather conditions manifest themselves.

Most clouds and weather systems occur in the troposphere.

Descriptive of the lowest and densest part of the earth's atmosphere in which most weather changes occur and temperature generally decreases rapidly with altitude and which extends from the earth's surface to the bottom of the stratosphere.

The upper region in space tat is characterized by random and continuously changing air motions: Turbosphere relates to the atmosphere in which turbulence frequently exists, so it is the troposphere, in contrast to the supposedly non-turbulent stratosphere.